💪 Body Fat Calculator
Estimate body fat percentage
How Body Fat Percentage Is Estimated
- 1Enter your height, waist, neck, and hip (for women) measurements.
- 2The U.S. Navy body fat formula is applied using these circumference measurements.
- 3For men: 86.010 × log10(waist − neck) − 70.041 × log10(height) + 36.76.
- 4For women: 163.205 × log10(waist + hip − neck) − 97.684 × log10(height) − 78.387.
- 5Your estimated body fat percentage, fat mass, and lean mass are displayed.
About Body Fat Calculator
Estimate your body fat percentage using the U.S. Navy method. Enter basic measurements to get your estimated body fat along with lean mass and fat mass breakdown.
Frequently Asked Questions
How accurate is the Navy body fat method?
The Navy method is reasonably accurate for most people, typically within 3-4% of results from more expensive methods like DEXA scans. It is one of the best non-equipment-based estimation methods.
What is a healthy body fat percentage?
For men, 10-20% is generally considered healthy. For women, 18-28% is typical. Athletes may be lower, while essential fat minimums are about 3-5% for men and 10-13% for women.
Where should I measure my waist?
Measure your waist at the navel (belly button) level. Stand relaxed, do not suck in your stomach, and measure after a normal exhale for the most accurate reading.