Body Fat Calculator — Estimate Body Fat Percentage | CalculHub
Body Fat Calculator (U.S. Navy Method)
Measure below the larynx
Measure at navel level (males) or narrowest point (females)
What is Body Fat Percentage?
Body fat percentage is the total mass of fat divided by total body mass. It is a more accurate indicator of health and fitness than body weight alone because it distinguishes between fat and lean muscle mass.
How to Use This Calculator
- Select your gender and enter your age, weight, and height.
- Enter your neck and waist measurements. Women also need to enter hip measurements.
- Click Calculate Body Fat to see your body fat percentage and category.
Formula
U.S. Navy Method:
Men: 495 / (1.0324 - 0.19077×log10(waist-neck) + 0.15456×log10(height)) - 450
Women: 495 / (1.29579 - 0.35004×log10(waist+hip-neck) + 0.22100×log10(height)) - 450
Men: 495 / (1.0324 - 0.19077×log10(waist-neck) + 0.15456×log10(height)) - 450
Women: 495 / (1.29579 - 0.35004×log10(waist+hip-neck) + 0.22100×log10(height)) - 450
Frequently Asked Questions
What is a healthy body fat percentage?
A healthy range for men is generally 10-20%, and for women 20-30%, depending on age.
Is the U.S. Navy method accurate?
It provides a good estimate (within 3-4% of DEXA scans) but may overestimate fat in highly muscular individuals.