Body Fat Calculator
Calculate body fat percentage using body circumference measurements with the U.S. Navy formula.
Body Fat Calculation
Enter accurate measurements of your body information and circumferences
Body Fat Percentage Standards
Male
Essential Fat2-5%
Athlete6-13%
Fitness14-17%
Average18-24%
Obese25%+
Female
Essential Fat10-13%
Athlete14-20%
Fitness21-24%
Average25-31%
Obese32%+
U.S. Navy Formula Guide
Measurement Methods
- • Waist circumference: Measure at navel level while breathing out naturally
- • Neck circumference: Measure at the narrowest part of neck, below Adam's apple
- • Hip circumference (Female): Measure at the widest part of hips
Accuracy
The U.S. Navy formula has an error range of approximately ±3-4% compared to DEXA scans. It's a relatively accurate and convenient method, but individual variations may exist.
Precautions
- • Measurements are most accurate when taken in the morning on an empty stomach
- • Avoid measuring after exercise or meals
- • For accurate measurement, don't pull the tape too tight or leave it too loose
- • For athletes with high muscle mass, results may be higher than actual body fat