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Performance and body metrics

Body Fat Calculator

Body Fat Calculator gives you a clearer body-composition estimate than BMI alone by using body measurements instead of weight only.

Updated 2026-06-06 3 article sections Calculator, explanation, and FAQ

What you get

A result, a short explanation, and links to related tools.

Best for

Body measurements, calories, and training goals

Tip

Use the calculator first, then read below if you want more context.

Calculator

Try Body Fat Calculator

Enter your details to get an estimate, then read the notes below for context.

Fast estimate Clear result notes No sign-up needed

Inputs

Enter your details

Most people finish this in under a minute.

Your result updates instantly in the panel on the right.

Result

Quick interpretation
Waiting for input

Enter your details and click calculate.

This panel shows the main result first, followed by any extra details that matter.

Primary signal

Your main number or category will appear here after calculation.

What to look at next

Check the range, category, or comparison details instead of relying on one number alone.

Estimate scale

Estimate

Focused view

Some calculators also show a visual summary here after calculation.

Step 1

Start with the main number, then check the range or category around it.

Step 2

Use the sections below if you want formulas, ranges, or related tools.

Notes to keep in mind

    Guide

    What is Body Fat Percentage?

    Performance and body metrics

    Body fat percentage estimates how much of your total body weight comes from fat tissue. It helps you distinguish between body size and body composition.

    That makes it more helpful than BMI alone for muscular adults, active people, and body recomposition goals.

    Guide

    Body Fat Formula

    Performance and body metrics

    This calculator uses the U.S. Navy circumference method. It estimates body fat from height, neck, waist, and for women, hip measurements.

    Results are useful for trend tracking, though small measurement errors can change the estimate.

    Guide

    Healthy Body Fat Range

    Performance and body metrics

    Healthy ranges vary by sex, age, and athletic background. Use the result as context, not as a strict label.

    • Men often land in a healthy range around 10% to 20%
    • Women often land in a healthy range around 18% to 28%
    • Performance athletes may sit lower than the general population
    FAQ

    Common questions

    Answers to common follow-up questions about body fat calculator.

    Is body fat percentage better than BMI?
    Answer

    For body composition, it is usually more informative than BMI because it estimates fat mass rather than only using height and weight.

    Where should I measure my waist?
    Answer

    Measure around your natural waist, typically near the narrowest point or just above the navel, depending on the method you follow.