Body Fat Calculator

Units
Gender
pounds
feet inches
feet inches
feet inches

Example

Sample: a 25-year-old man, 70 kg, 178 cm, neck 50 cm, waist 96 cm.

This is a sample result, not your calculation. Enter your own values to replace it.

Enter your measurements, then calculate.

Body Fat

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Essential fatAthletesFitnessAverageObese

The full report

Body composition estimates
Body Fat (U.S. Navy Method) —
Body Fat Category —
Body Fat Mass —
Lean Body Mass —
Ideal Body Fat for Given Age (Jackson & Pollock) —
Body Fat to Lose to Reach Ideal —
Body Fat (BMI method) —

Circumference estimates, not a body scan. The Navy method reads where fat sits; the BMI method knows only height, weight and age and cannot tell muscle from fat, which is why the two rarely agree. Useful for tracking a direction over months, not for a diagnosis.

Check your measurements

Enter an age and every measurement. The waist must be larger than the neck for the formula to work.