Body Fat Percentage Calculator

Calculate your body fat percentage using multiple methods including US Navy formula, BMI estimation, and waist-to-hip ratio. Get accurate assessments for fitness tracking.

US Navy Method

Most accurate using circumference measurements

BMI-Based

Quick estimation using height and weight

Waist-Hip Ratio

Simple method using waist and hip measurements

US Navy Method

Gender

Height (cm)

Waist Circumference (cm)

How to measure:

Measure at the narrowest point of your torso, usually just above the navel

Neck Circumference (cm)

How to measure:

Measure just below the Adam's apple, keep tape level around neck

Hip Circumference (cm)

How to measure:

Measure at the widest point of your hips, usually around the buttocks

BMI-Based Estimation

Age

Gender

Height (cm)

Weight (kg)

Waist-Hip Ratio Method

Gender

Waist Circumference (cm)

Hip Circumference (cm)

Body Fat Percentage

Normal

How to Use the Body Fat Calculator

This calculator offers three different methods to estimate body fat percentage. The US Navy method is considered most accurate for home measurements, using circumference measurements of neck, waist, and hips (for women). It's based on the relationship between body circumferences and body density. The BMI-based method uses the Deurenberg formula, which estimates body fat from BMI, age, and gender, while the waist-hip ratio method provides a quick assessment of fat distribution patterns.

Measurement Points Guide

Neck: Just below Adam's apple

Waist: Narrowest point (above navel)

Hip: Widest point (around buttocks)

Use a flexible measuring tape, keep it level and snug but not tight. Take measurements at the same time of day for consistency.

Body fat percentage is a more accurate indicator of health than BMI alone, as it distinguishes between muscle and fat mass. For men, essential fat is 2-5%, athletes typically have 6-13%, fitness enthusiasts 14-17%, and average is 18-24%. For women, essential fat is 10-13%, athletes 14-20%, fitness enthusiasts 21-24%, and average is 25-31%. Remember that these are estimates - professional methods like DEXA scans or hydrostatic weighing provide more precise measurements. Use this calculator as a baseline and track changes over time rather than focusing on absolute numbers.