Don's Tools · World · BMI Calculator

BMI calculator in pounds & inches

Calculate your Body Mass Index using US units - pounds and feet/inches. See your BMI, weight category, and the healthy weight range for your height.

ft
in
lbs
cm
kg
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Enter your height and weight
Underweight
Below 18.5
Normal
18.5 - 24.9
Overweight
25.0 - 29.9
Obese
30.0 and above
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BMI limitations: BMI does not distinguish between fat and muscle mass, and does not account for age, sex, ethnicity, or body composition. Athletes often have a high BMI despite low body fat.

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How to use BMI calculator in pounds & inches

  1. Enter your figures

    Fill in Feet, Inches and Weight. Values you change are used straight away, with no submit button.

  2. Read the results

    The totals and the breakdown below them update as soon as a value changes.

  3. Start over any time

    Nothing is saved on a server, so reloading the page clears everything.

What this tool does

BMI in pounds and feet or inches

Enter your height in feet and inches and your weight in pounds. The BMI is worked out as you type, with no unit conversion first.

Metric as well as US units

The US (lbs / ft-in) and Metric (kg / cm) toggle switches the whole form, so the same page works whichever units you think in.

Your category and healthy weight range

The result names the category your BMI falls in and shows the weight range that would be considered healthy for your height.

Runs fully in your browser with no upload and no sign-up

Your height and weight are never sent anywhere. The calculation runs in your browser, with no account and no sign-up.

Frequently asked questions

What is a healthy BMI for adults?

According to the CDC and WHO, a BMI between 18.5 and 24.9 is considered normal/healthy for most adults. However, these thresholds were developed from predominantly white European populations. Research suggests lower thresholds (23 for overweight, 27.5 for obese) may be more appropriate for Asian populations, and some studies suggest the normal range for Black Americans may be slightly higher.

Is BMI accurate for athletes and muscular people?

No - BMI uses only weight and height, so it cannot distinguish muscle from fat. A bodybuilder or NFL linebacker may have a BMI in the overweight or obese range despite having very low body fat. For athletes, measurements like body fat percentage (via DEXA scan, hydrostatic weighing, or bioelectrical impedance) are more meaningful than BMI.

What BMI is considered obese in the US?

A BMI of 30 or above is classified as obese by the CDC. Obesity is further divided into Class 1 (BMI 30-34.9), Class 2 (35-39.9), and Class 3 / severe obesity (40+). As of 2024, approximately 42% of US adults are classified as obese - up from about 30% in 1999.

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