Best Health & Wellness App

How Is BMI Calculated?

BMI is calculated using your body weight and height. The standard metric formula is:

BMI = weight (kg) ÷ height² (m²)

For example, if you weigh 70 kg and are 1.75 m tall:

BMI = 70 ÷ (1.75 × 1.75) = 22.9

Your BMI would therefore be approximately 22.9, which falls within the commonly used healthy-weight BMI range for adults.

You don't need to calculate the formula manually. Humalyst makes it easy to calculate your BMI in seconds using your height and weight.

Why Is BMI Used?

BMI is useful because it provides a simple and consistent way to screen for weight categories across large populations and individual health assessments. Healthcare professionals and public health organizations commonly use BMI as one of several measurements when assessing weight-related health risks.

A BMI result can help you:

• Understand your general weight category

• See whether your weight falls within a commonly used healthy range

• Monitor changes in your BMI over time

• Start a conversation with a healthcare professional about your health

• Set informed health and wellness goals

BMI is most useful when considered alongside other factors rather than viewed on its own.

What Can BMI Tell You?

For adults, BMI can provide an indication of whether your weight is relatively low, within a commonly used healthy range, above that range, or in a range associated with obesity.

The commonly used adult BMI categories are:

• Below 18.5: Underweight

• 18.5–24.9: Healthy weight

• 25.0–29.9: Overweight

• 30.0 or higher: Obesity

These categories are general screening ranges and do not determine whether an individual is healthy or unhealthy.

What Can't BMI Tell You?

BMI is a useful screening measurement, but it does not directly measure body fat or provide a complete picture of your health.

For example, BMI does not account for:

• Muscle mass

• Body fat distribution

• Bone density

• Waist circumference

• Overall body composition

• Physical fitness

• Diet and lifestyle

• Certain medical conditions

A person with a high amount of muscle mass may have a higher BMI without having excess body fat. Similarly, people with the same BMI can have very different levels and distributions of body fat.

For this reason, BMI should be considered alongside other health information rather than used as a standalone diagnosis.

Calculate Your BMI with Humalyst

Want to check your BMI quickly? Humalyst's BMI Calculator makes it simple to calculate your Body Mass Index using your height and weight.

Get your BMI result in seconds and use it as a starting point for understanding your weight category and health goals.

Download Humalyst for iOS and Android and keep your BMI Calculator with you wherever you go.

BMI is a screening measurement and is not intended to diagnose, treat, cure, or prevent any medical condition. If you have concerns about your weight or health, consult a qualified healthcare professional. BMI categories may not be appropriate for everyone, including children, teenagers, pregnant people, and some athletes.

What Is BMI?

BMI (Body Mass Index) is a commonly used measurement that compares your weight with your height to estimate whether your body weight falls within a healthy range. A BMI Calculator makes this calculation quick and easy by using your height and weight to provide your BMI value.

BMI is widely used as a simple screening tool for adults. It can help you understand your current weight category and identify whether you may be underweight, within the healthy weight range, overweight, or living with obesity.

BMI Categories for Adults

Understanding your BMI category can help you interpret your Body Mass Index result and get a general idea of where your weight falls in relation to commonly used adult BMI ranges.

For most adults, BMI is grouped into four main categories: underweight, healthy weight, overweight, and obesity. These categories are based on established BMI thresholds and are used as a screening tool rather than a diagnosis.

Adult BMI Chart

Below 18.5
Underweight (BMI is below the commonly recommended adult range).

18.5 – 24.9
Healthy Weight (BMI falls within the commonly used healthy-weight range).

25.0 – 29.9
Overweight (BMI is above the healthy-weight range).

30.0 and above
Obesity (BMI falls within the obesity range).

These ranges are commonly used for adults and are the standard BMI categories used by organizations such as the CDC.

Underweight: BMI Below 18.5

A BMI below 18.5 is generally classified as underweight for adults.

A low BMI can sometimes be associated with inadequate nutrition or other health concerns, but BMI alone cannot determine the reason for a person's weight. If you are concerned about being underweight or experiencing unexplained weight loss, consider speaking with a qualified healthcare professional.

Healthy Weight: BMI 18.5 – 24.9

A BMI between 18.5 and 24.9 is generally classified as within the healthy-weight range for adults.

Being within this range does not necessarily mean that a person is healthy in every respect. BMI is only one measurement and should be considered alongside factors such as body composition, waist circumference, physical activity, nutrition, and overall health.

Overweight: BMI 25.0 – 29.9

A BMI between 25.0 and 29.9 is generally classified as overweight.

A higher BMI can be associated with an increased risk of certain health conditions. However, BMI does not measure body fat directly and may classify people with higher muscle mass as overweight.

For this reason, an overweight BMI result should be viewed as a screening result rather than a diagnosis.

Obesity: BMI 30.0 and Above

A BMI of 30.0 or higher falls within the obesity category for adults.

Obesity is associated with an increased risk of several health conditions, but BMI alone cannot determine an individual's overall health or whether they have excess body fat.

The obesity category can also be divided into different levels:

BMI RangeObesity Classification30.0 – 34.9Class 135.0 – 39.9Class 240.0 and aboveClass 3

These classifications are commonly used to further describe BMI levels within the obesity range.

Is a Higher or Lower BMI Always Unhealthy?

Not necessarily.

BMI is a useful screening measurement, but it does not account for every factor that influences health. For example, people with substantial muscle mass may have a higher BMI because muscle contributes to body weight even when body fat is relatively low. BMI also does not show where body fat is distributed.

Your BMI result is therefore best understood as one piece of information about your health, rather than a complete assessment.

BMI Categories for Different Populations

The standard BMI categories are useful for general adult screening, but BMI-related health risks can vary between populations.

Research and health guidance indicate that some ethnic groups, including many South Asian adults, may experience certain weight-related health risks at lower BMI values. For example, NHS guidance uses lower thresholds for overweight and obesity for some ethnic groups.

If you are using BMI to assess your personal health, consider your ethnicity and other individual health factors when interpreting your result. A healthcare professional can provide more personalized guidance.

BMI Categories Are Different for Children

The adult BMI categories above should not be used to interpret BMI in children and teenagers in the same way.

For children and adolescents, BMI is interpreted using age- and sex-specific BMI-for-age percentiles because body composition changes as children grow.

If you are looking for a BMI assessment for someone under 18, use an appropriate child or adolescent BMI-for-age assessment and consult a healthcare professional when needed.

Check Your BMI with Humalyst

Want to know which BMI category you fall into?

Humalyst makes it easy to calculate your BMI and understand your result. Enter your height and weight to get your BMI and see the corresponding adult BMI category.

Download Humalyst on iOS or Android and keep your BMI Calculator with you wherever you go.

BMI is a screening measurement and is not intended to diagnose or treat any medical condition. BMI categories are general guidelines and may not accurately reflect health for every individual. If you have concerns about your weight, nutrition, or health, consult a qualified healthcare professional.

Calculate BMI in Metric or Imperial Units

A BMI Calculator can calculate your Body Mass Index using either metric or imperial measurements. Humalyst makes it easy to enter your height and weight in the units you already use, so you can calculate your BMI without manually converting measurements.

Whether you measure your weight in kilograms or pounds and your height in centimeters, meters, feet, or inches, Humalyst can help you calculate your BMI quickly and understand your result.

Calculate BMI Using Metric Units

The metric system uses kilograms (kg) for weight and meters (m) for height.

The standard metric BMI formula is:

BMI = weight (kg) ÷ height² (m²)

For example, if your weight is 70 kg and your height is 1.75 meters:

BMI = 70 ÷ (1.75 × 1.75)

BMI = 22.9

If your height is measured in centimeters, you can convert it to meters by dividing the measurement by 100.

For example:

175 cm ÷ 100 = 1.75 m

Humalyst simplifies this process so you don't have to perform these conversions manually.

Calculate BMI Using Imperial Units

The imperial system commonly uses pounds (lb) for weight and feet and inches (ft/in) for height.

When calculating BMI manually using pounds and inches, the formula is:

BMI = [weight (lb) ÷ height² (in)] × 703

For example, if you weigh 154 lb and are 5 feet 9 inches tall:

Height = 5 × 12 + 9 = 69 inches

BMI = (154 ÷ 69²) × 703

BMI ≈ 22.7

The imperial formula produces the same BMI measurement as the metric formula when the equivalent height and weight are used. The CDC provides both metric and U.S. customary formulas for calculating BMI.

BMI Calculator in kg and cm

If you normally measure your weight in kilograms and your height in centimeters, you can use Humalyst to calculate your BMI without converting your measurements first.

For example:

• Weight: 70 kg

• Height: 175 cm

• BMI: approximately 22.9

Simply enter your measurements in the Humalyst app and get your BMI result instantly.

BMI Calculator in Pounds and Inches

If you use pounds and inches, you can calculate your BMI using your weight in pounds (lb) and height in feet and inches (ft/in).

For example:

• Weight: 154 lb

• Height: 5 ft 9 in

• BMI: approximately 22.7

Humalyst is designed to make BMI calculations convenient regardless of which measurement system you prefer.

Metric vs. Imperial BMI

The measurement system does not change the meaning of your BMI. Metric and imperial formulas are simply different ways of using your height and weight to arrive at the same BMI value.

Measurement SystemWeightHeightMetricKilograms (kg)Meters (m) or centimeters (cm)ImperialPounds (lb)Feet (ft) and inches (in)

You can therefore use whichever measurement system is most convenient for you.

How to Calculate BMI Without Converting Units

You don't need to manually convert pounds to kilograms or feet and inches to meters just to calculate your BMI.

A BMI Calculator can handle the calculation for you. Humalyst lets you enter your measurements using convenient units and provides your BMI result without requiring complicated mathematical calculations.

This makes it easier to check your BMI whether you're at home, at the gym, traveling, or simply monitoring your health over time.

Calculate Your BMI with Humalyst

Ready to check your BMI?

Humalyst makes BMI calculation simple, fast, and convenient. Enter your height and weight, choose the measurement units you use, and get your BMI result in seconds.

Download Humalyst on iOS or Android and keep your BMI Calculator with you wherever you go.

BMI is a screening measurement and is not intended to diagnose, treat, cure, or prevent any medical condition. BMI is one potential indicator of health and should be considered alongside other factors. If you have concerns about your weight or health, consult a qualified healthcare professional.

What Does My BMI Result Mean?

Your BMI result is a number calculated from your height and weight. For adults, this number is commonly used to place your weight into a general BMI category: underweight, healthy weight, overweight, or obesity.

Understanding your BMI result can give you a useful starting point for thinking about your weight and overall health. However, BMI is a screening measurement, not a diagnosis, and it should not be interpreted on its own.

What If My BMI Is in the Healthy Range?

A BMI between 18.5 and 24.9 falls within the commonly used healthy-weight range for adults.

This does not necessarily mean that you are healthy in every respect. BMI does not measure factors such as fitness, nutrition, body-fat distribution, or muscle mass.

Think of your BMI result as one useful piece of information, rather than a complete assessment of your health.

What If My BMI Is Below the Healthy Range?

A BMI below 18.5 is generally classified as underweight.

Being underweight can have different causes, and BMI alone cannot determine why someone has a low body weight. If you have experienced unexplained weight loss or are concerned about your weight or nutrition, consider speaking with a qualified healthcare professional.

What If My BMI Is Above the Healthy Range?

A BMI of 25 or higher falls above the standard healthy-weight range for adults.

A higher BMI can be associated with an increased risk of certain health conditions, but BMI does not directly measure body fat. Someone with substantial muscle mass, for example, may have a higher BMI without having a high level of body fat.

Your BMI should therefore be considered alongside other factors rather than treated as a diagnosis.

Your BMI Is a Starting Point

Your BMI result can help you identify a general weight category, but understanding your health requires more than a single number.

Factors such as waist circumference, body composition, physical activity, nutrition, family history, and existing health conditions can provide additional context.

If your BMI result concerns you, consider discussing it with a qualified healthcare professional.

Check Your BMI with Humalyst

Want to calculate your BMI quickly?

Humalyst makes it simple to calculate your BMI and understand your general weight category. Enter your height and weight to get your BMI result in seconds.

Download Humalyst for iOS or Android and keep your BMI Calculator with you wherever you go.

BMI is a screening measurement and is not intended to diagnose, treat, cure, or prevent any medical condition.

BMI Is Only One Measure of Health

Your BMI is useful, but it doesn't tell your entire health story.

BMI uses only two measurements—height and weight—to estimate your Body Mass Index. Because it does not directly measure body fat, muscle mass, or where fat is stored in the body, your BMI result should be considered as one part of a broader picture of health.

Health organizations describe BMI as a screening measure, rather than a diagnostic test.

What BMI Can Tell You

BMI can help provide a general indication of where your weight falls within commonly used adult weight categories.

It can help you:

• Identify your general BMI category

• Monitor changes in your BMI over time

• Start a conversation about weight-related health

• Set personal health and wellness goals

• Understand whether your current weight falls within a commonly used BMI range

What BMI Cannot Tell You

BMI does not directly tell you:

• How much body fat you have

• Where your body fat is stored

• How much of your weight comes from muscle

• Your fitness level

• Your nutritional status

• Your overall health

• Whether you have a particular medical condition

For example, a person who has significant muscle mass may have a higher BMI because muscle contributes to body weight. BMI may therefore classify some muscular people as overweight even when they do not have excessive body fat.

Other Factors That Matter

A more complete understanding of health can involve several different factors, including:

Waist circumference
Measuring your waist can provide additional information about abdominal fat and may help provide context alongside BMI.

Body composition
Body-fat percentage and muscle mass can provide information that BMI does not capture.

Physical activity
Fitness and regular physical activity are important parts of overall health.

Nutrition
Dietary habits and nutritional intake can influence health independently of BMI.

Medical history
Existing conditions, medications, family history, and other individual factors can affect health risks.

BMI Should Be Used as a Screening Tool

A BMI result should not be used to diagnose a health condition or determine your overall health by itself.

Instead, use your BMI as a starting point. If your result is outside the commonly used healthy range or you have concerns about your weight, consider discussing your individual circumstances with a healthcare professional.

Use Humalyst to Track Your BMI

Humalyst gives you a simple way to calculate your BMI and keep track of your health measurements.

Calculate your BMI in seconds with Humalyst and use your result as one part of your broader health journey.

Download Humalyst on iOS or Android.

BMI is a screening measurement and should not replace professional medical advice, diagnosis, or treatment.

BMI Calculator for Men and Women

Looking for a BMI Calculator for men or women? The standard BMI calculation uses the same basic formula for adult men and women: your weight divided by your height squared.

For adults, the commonly used BMI categories are not different simply because you are male or female. The standard adult BMI ranges are generally applied to both men and women.

How Is BMI Calculated for Men and Women?

The standard metric formula is:

BMI = weight (kg) ÷ height² (m²)

For example, a person weighing 70 kg and measuring 1.75 m tall has a BMI of approximately 22.9.

The calculation itself does not require a different formula for adult men and women.

BMI Categories for Men and Women

For most adults, the standard categories are:

BMICategoryBelow 18.5Underweight18.5 – 24.9Healthy weight25.0 – 29.9Overweight30.0 or higherObesity

These standard adult BMI categories are generally used for both men and women.

Does BMI Mean the Same Thing for Men and Women?

The BMI number is calculated in the same way, but BMI does not capture differences in body composition between individuals.

Men and women can have different amounts and distributions of body fat at the same BMI. This is one reason why BMI should be viewed as a screening measurement rather than a complete measure of body composition or health.

Your BMI result may be more useful when considered alongside other measurements and personal health information.

BMI for Men

Men can use BMI to obtain a general indication of their weight category.

However, BMI does not distinguish muscle from fat. Men with significant muscle mass may have a higher BMI even when they have relatively low body fat.

If you exercise regularly or have a high level of muscle mass, consider your BMI alongside other measures of health.

BMI for Women

Women can also use BMI to understand their general weight category.

However, BMI does not account for differences in body composition or changes that occur during certain life stages.

Pregnancy is an important exception: standard adult BMI calculators are not intended to assess weight status during pregnancy. The NHS specifically advises against using its adult BMI calculator during pregnancy.

BMI and Ethnicity

BMI-related health risks can also vary between population groups.

Some ethnic groups, including many Asian populations, may experience certain weight-related health risks at lower BMI levels. For this reason, some clinical guidance uses lower BMI thresholds for specific populations.

This means that a standard BMI category should not always be interpreted as a complete measure of an individual's health risk.

Calculate BMI for Men and Women with Humalyst

Whether you're looking for a BMI Calculator for men, a BMI Calculator for women, or a simple way to monitor your BMI, Humalyst makes the calculation quick and convenient.

Enter your height and weight, get your BMI result, and understand your general BMI category.

Download Humalyst for iOS or Android and take your BMI Calculator with you.

BMI is a screening measurement and is not intended to diagnose or treat any medical condition. Pregnant people, children, teenagers, and individuals with certain health conditions may require different approaches to assessing weight and health.

Does Age Affect BMI?

Age is important when interpreting BMI, but the way it affects BMI depends on whether you are an adult or a child.

For most adults, the standard BMI categories are based on fixed BMI ranges and are generally used across adult age groups. In other words, a BMI of 24 is not automatically interpreted differently simply because one adult is 25 and another is 55.

However, BMI is interpreted differently for children and teenagers because their bodies are still growing and their body composition changes with age.

BMI for Adults

For adults, the commonly used BMI categories are:

BMIAdult CategoryBelow 18.5Underweight18.5 – 24.9Healthy weight25.0 – 29.9Overweight30.0 or higherObesity

These categories are generally applied to adults regardless of age.

However, age can still be relevant when considering your overall health. Changes in muscle mass, body composition, activity levels, and other factors can occur as people get older. BMI alone does not capture these changes.

BMI for Older Adults

As people age, body composition can change. Muscle mass may decrease, while body-fat distribution can change.

Because BMI does not distinguish muscle from fat or show where body fat is stored, an adult's BMI should be considered alongside other health measurements and individual circumstances.

If you are an older adult and are concerned about your weight, muscle mass, or nutrition, consider speaking with a healthcare professional.

BMI for Children and Teenagers

The standard adult BMI categories should not be used to interpret BMI in children and teenagers in the same way.

For children and adolescents, BMI is interpreted according to age and sex, usually using BMI-for-age growth charts or percentiles. This is because body composition changes as children grow and differs between ages and sexes.

For example, a BMI that may be considered healthy for one child may not fall into the same percentile for another child of a different age or sex.

Why Is Children's BMI Different?

Children are continuously growing and developing. Their height, weight, muscle mass, and body-fat levels change throughout childhood and adolescence.

Instead of comparing a child's BMI with fixed adult thresholds, healthcare professionals compare BMI with other children of the same age and sex using appropriate growth references.

Does BMI Change as You Get Older?

Your BMI can change at any age because BMI is calculated from your current height and weight.

For most adults, the interpretation of the BMI number uses the same standard categories. However, changes in body composition and other health factors that occur with age can influence what your BMI result means in the broader context of your health.

What About People Under 18?

If you are calculating BMI for someone under 18, do not interpret the result using the standard adult BMI categories.

Children and teenagers require an age- and sex-specific BMI-for-age assessment. The NHS, for example, uses a separate BMI approach for children and teenagers aged 2 to 17.

Calculate Your Adult BMI with Humalyst

If you're an adult looking for a simple BMI Calculator, Humalyst can calculate your BMI using your height and weight and show your general adult BMI category.

Download Humalyst on iOS or Android and calculate your BMI whenever you need it.

The information on this page is intended for general educational purposes. BMI is a screening measurement and is not a diagnosis. Adult BMI categories are not appropriate for interpreting BMI in children and teenagers. If you have concerns about your weight, growth, or health, consult a qualified healthcare professional.

Why Use the Humalyst BMI Calculator?

There are many ways to calculate your Body Mass Index, but Humalyst makes checking your BMI simple, fast, and convenient from your smartphone.

Instead of manually calculating BMI using a formula, Humalyst lets you enter your height and weight and quickly provides your BMI result and general BMI category.

Simple BMI Calculation

You don't need to remember the BMI formula or perform complicated calculations yourself.

Enter your height and weight, and Humalyst calculates your BMI in seconds.

Use the Units You Prefer

Whether you use the metric or imperial measurement system, Humalyst makes BMI calculation convenient.

You can work with measurements such as:

• Kilograms and centimeters

• Kilograms and meters

• Pounds and feet

• Pounds and inches

This means you can calculate your BMI without manually converting your measurements.

Understand Your BMI Category

Getting a BMI number is only part of the process.

Humalyst helps you understand the general BMI category associated with your result, making it easier to interpret your number in the context of commonly used adult BMI ranges.

Keep Your Health Tools With You

Because Humalyst is a mobile app, you don't need to search for a BMI Calculator every time you want to check your BMI.

Install Humalyst once and have convenient access to your BMI and other health-focused tools whenever you need them.

Designed for Everyday Use

Whether you're checking your BMI for the first time, monitoring changes over time, or simply learning more about your weight category, Humalyst is designed to make the process straightforward.

No complicated calculations. No unnecessary steps. Just a simple way to calculate and understand your BMI.

More Than a BMI Calculator

Humalyst is designed as a broader health and wellness companion rather than just a single-purpose calculator.

Explore the available health tools inside the Humalyst app and use them as part of your personal health and wellness journey.

Download Humalyst

Ready to calculate your BMI?

Download Humalyst on iOS or Android and get your BMI Calculator wherever you go.

BMI is a screening measurement and is not intended to diagnose, treat, cure, or prevent any medical condition. If you have concerns about your weight or health, consult a qualified healthcare professional.

A BMI Calculator in Your Pocket

Your BMI Calculator doesn't have to be something you find through a Google search every time you want to use it.

Humalyst puts a convenient BMI Calculator directly on your smartphone, giving you quick access whenever you want to check your Body Mass Index.

Calculate Your BMI Wherever You Are

Whether you're at home, at the gym, traveling, or simply monitoring your health, Humalyst gives you a convenient way to calculate your BMI from your phone.

Enter your height and weight and get your BMI result in seconds.

No Manual BMI Calculations

You don't need to work through mathematical formulas or convert measurements manually.

Humalyst handles the calculation for you, making it easy to check your BMI using the measurements you already know.

Keep Track of Your Health Journey

Regularly checking your measurements can help you understand how they change over time.

Humalyst is designed to give you convenient access to your health calculations so you can make them part of your personal wellness routine.

Available on iOS and Android

Humalyst is available for iPhone and Android devices, making it accessible across the two major mobile platforms.

Download the app and keep your BMI Calculator available whenever you need it.

Download Humalyst Today

Your BMI Calculator, always within reach.

Download Humalyst and make BMI calculation a simple part of your health and wellness routine.

[Download on the App Store]
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Humalyst provides general health and wellness information. BMI is a screening measurement and should not be used as a substitute for professional medical advice, diagnosis, or treatment.

Frequently asked questions

What is a BMI Calculator?

A BMI Calculator calculates your Body Mass Index using your height and weight and provides an estimate of your BMI category.

How do I calculate my BMI?

Divide your weight in kilograms by your height in meters squared.

What is a normal BMI?

For adults, a BMI between 18.5 and 24.9 is commonly classified as normal weight.

Is BMI accurate?

BMI can be useful as a general screening measurement, but it does not directly measure body fat or account for differences in muscle mass and body composition.

Is Humalyst a medical tool?

Humalyst provides general health calculations and educational information. It is not a substitute for professional medical advice, diagnosis, or treatment.

What is a healthy BMI?

For most adults, a BMI between 18.5 and 24.9 is commonly considered within the healthy/normal range.

Does BMI differ for men and women?

The standard adult BMI calculation itself is the same, but BMI does not account for differences in body composition between men and women.

What is my ideal weight?

There isn't one universal ideal weight. A healthy weight range can be estimated based on height and other individual factors.

Can I use the BMI Calculator every day?

You can calculate BMI whenever you want, but short-term changes in weight do not necessarily represent meaningful changes in health.

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BMI Information & Sources

Humalyst aims to provide clear and understandable information about BMI, BMI Categories, and Body Mass Index calculations based on established health guidance.

Because BMI is a health-related measurement, it is important to understand both how BMI is calculated and the limitations of using BMI as an indicator of health.

The information provided on this website is intended for general educational purposes and should not be considered medical advice or a diagnosis.

Trusted BMI Information

The BMI information presented on Humalyst is informed by established health organizations and public health resources, including:

Centers for Disease Control and Prevention (CDC)
The CDC provides information about BMI calculation, adult BMI categories, BMI-for-age, and the use of BMI as a screening measure.

National Health Service (NHS)
The NHS provides guidance on calculating BMI for adults and children, interpreting BMI results, and understanding the limitations of BMI.

World Health Organization (WHO)
The WHO provides international public-health guidance and information relating to overweight, obesity, and BMI.

What Our Sources Help Establish

These resources provide evidence-based information about topics such as:

• How BMI is calculated

• Adult BMI categories

• BMI screening ranges

• BMI limitations

• BMI and body composition

• BMI for children and teenagers

• Weight-related health risks

• Healthy weight and obesity

Humalyst uses these established references to help ensure that the educational information on this website is clear, responsible, and useful.

BMI Is Not a Diagnosis

BMI should be understood as a screening measurement, not a medical diagnosis.

A BMI result does not directly measure body fat and cannot provide a complete assessment of an individual's health. Factors such as muscle mass, body-fat distribution, age, pregnancy, ethnicity, lifestyle, and medical history may affect how BMI should be interpreted.

If you have concerns about your BMI, weight, nutrition, or overall health, speak with a qualified healthcare professional.

Primary References

For more detailed information about BMI, you can consult the following authoritative resources:

• Centers for Disease Control and Prevention (CDC) — BMI and BMI calculation guidance

• National Health Service (NHS) — BMI calculator and BMI health information

• World Health Organization (WHO) — Information on overweight and obesity

About Humalyst

Humalyst is a health and wellness app designed to make everyday health calculations and information more accessible.

Our goal is to provide simple, useful, and easy-to-understand health tools that can help people better understand their measurements and support their personal wellness goals.

Download Humalyst on iOS or Android to access your BMI Calculator and other health-focused tools.

This website and the Humalyst app are not intended to provide medical diagnosis, treatment, or professional medical advice. Always consult an appropriately qualified healthcare professional for personalized medical guidance.

Sources:
Centers for Disease Control and Prevention (CDC): https://www.cdc.gov/bmi/
National Health Service (NHS): https://www.nhs.uk/health-assessment-tools/calculate-your-body-mass-index/
World Health Organization (WHO): https://www.who.int/news-room/fact-sheets/detail/obesity-and-overweight

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