Body Fat Calculator
Estimate body fat percentage
How to Use
Select gender
Choose male or female for the correct formula.
Enter height
Input your height accurately.
Measure and enter circumferences
Measure neck, waist (and hips for women) at specified points.
View body composition
See body fat percentage, fat mass, and lean mass.
Frequently Asked Questions
How accurate is the Navy method?
The US Navy method has about 3-4% error compared to lab methods. It's useful for tracking trends but not precise body composition.
How do I measure correctly?
Neck: at narrowest point below Adam's apple. Waist: men at navel, women at narrowest. Hips (women): at widest point of buttocks.
What is a healthy body fat percentage?
Men: Essential 2-5%, Athletes 6-13%, Fitness 14-17%, Average 18-24%, Obese 25%+. Women: Essential 10-13%, Athletes 14-20%, Fitness 21-24%, Average 25-31%, Obese 32%+.
Why do women have higher body fat?
Women naturally carry more essential fat for reproductive functions. The healthy ranges are different but not less healthy.
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