Body Fat Calculator
Calculate your body fat percentage using the US Navy method. Get accurate estimates based on simple body measurements - no calipers or special equipment needed.
Measure just below your Adam's apple
Measure at navel level
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About the Author
Jonas
I have been a multi-sport athlete for over 10 years and I built this calculator to help athletes like you and me.
Learn more about meFrequently Asked Questions
The US Navy method is accurate to within 3-4% of more precise methods like DEXA scanning. It's been validated extensively for military fitness assessments and provides reliable estimates for most people.
For men, 14-18% is considered 'Fitness' level, while 6-14% is 'Athletes'. For women, 21-25% is 'Fitness' and 14-21% is 'Athletes'. Essential fat (minimum for health) is 2-6% for men and 10-14% for women.
For men, measure at the navel (belly button) level. For women, measure at the narrowest part of your waist, typically just above the belly button. Keep the tape measure level and snug but not tight.
Women naturally store more fat in the hip region, so the formula accounts for this difference. The hip measurement is taken at the widest part of the buttocks for accuracy.
BMI is a simple height-to-weight ratio that doesn't distinguish between muscle and fat. Body fat percentage directly measures fat tissue, making it more useful for athletes or muscular individuals who may have high BMI but low body fat.
How accurate is the Navy body fat method?
What is a healthy body fat percentage?
Where should I measure my waist?
Why do women need hip measurements?
How does body fat differ from BMI?
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