Body Fat Calculator
Estimate your body fat percentage using common measurements.
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Body Fat Calculator
Estimate your body fat percentage using the U.S. Navy measurement method.
cm
Narrowest point above the navel
cm
cm
cm
Widest point of the hips
Body fat percentage
EssentialAthletesFitnessAverageObese
Waist
Category
Enter your measurements and press Calculate.
How the Navy body fat method works
The U.S. Navy method estimates body fat from a few simple circumference measurements using a body-density equation.
Men: 495 / (1.0324 − 0.19077·log(waist−neck) + 0.15456·log(height)) − 450
Women: 495 / (1.29579 − 0.35004·log(waist+hip−neck) + 0.22100·log(height)) − 450
Women: 495 / (1.29579 − 0.35004·log(waist+hip−neck) + 0.22100·log(height)) − 450
| Category | Women | Men |
|---|---|---|
| Essential | < 6% | < 14% |
| Athletes | 6 – 13% | 14 – 20% |
| Fitness | 14 – 17% | 21 – 24% |
| Average | 18 – 24% | 25 – 31% |
| Obese | ≥ 25% | ≥ 32% |
Note: circumference methods are estimates — they do not account for muscle mass, age or fitness level.