Is the Body Fat Calculator free to use?

Yes, our Body Fat Calculator is 100% free to use without sign-up.

Can I use the Body Fat Calculator on my phone?

Yes, the Body Fat Calculator is mobile-friendly and works on all devices.

How accurate is this Body Fat Calculator?

The Body Fat Calculator gives accurate estimates based on your measurements.

Why use an online Body Fat Calculator?

An online Body Fat Calculator quickly estimates your body fat percentage and helps you track fitness progress.

Body Fat Calculator - Estimate Your Body Fat Percentage

Calculate Your Body Fat

Sex

Male

Female

Unit System

Metric (cm)

US (in)

Waist (cm) Narrowest point

Neck (cm) Below the larynx

Height (cm)

Hip (cm) Widest point

Body Fat Estimate

Your body fat estimate will appear here after calculation

Body Fat Categories

Essential Fat

Men: 2-5%
Women: 10-13%

Athletes

Men: 6-13%
Women: 14-20%

Fitness

Men: 14-17%
Women: 21-24%

Average

Men: 18-24%
Women: 25-31%

About Body Fat Calculator

This calculator estimates your body fat percentage using the US Navy method, which relies on circumference measurements. It's a simple field method often used for quick assessments.

How to Use:

Select Sex: Choose Male or Female, as the formula differs
Select Units: Choose Metric (cm) or US (inches)
Measure:
- Waist: Narrowest point, usually just above the navel
- Neck: Below the larynx (Adam's apple), sloping slightly downward
- Hip (Women only): Widest point around the buttocks
- Height: Your total height

Example (Metric, Male): Waist = 85 cm, Neck = 38 cm, Height = 175 cm. Result ≈ 18.5% body fat (falls in the "Average" category).

Note: This is an estimate. For precise body composition analysis, methods like DEXA scans or hydrostatic weighing are more accurate. Results may vary based on individual body shape and measurement accuracy.