Body Fat Calculator
Estimate your body fat percentage using the US Navy formula based on body measurements.
ft
in
Measure below the Adam's apple
Men: at navel level. Women: at narrowest point
Women only: at widest point
Body Fat Percentage
0%
Category
-
Fat Mass
0 lbs
Lean Mass
0 lbs
Body Fat Categories
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Understanding Body Fat Percentage
Body Fat Categories (Men):
- Essential Fat: 2-5%
- Athletes: 6-13%
- Fitness: 14-17%
- Average: 18-24%
- Obese: 25%+
Body Fat Categories (Women):
- Essential Fat: 10-13%
- Athletes: 14-20%
- Fitness: 21-24%
- Average: 25-31%
- Obese: 32%+
How to Measure:
- Neck: Measure below the larynx (Adam's apple), tape sloping slightly downward at front
- Waist (Men): Horizontal measure at navel level
- Waist (Women): Horizontal measure at the narrowest point
- Hip (Women): Horizontal measure at the widest point of the buttocks
About This Method:
The US Navy method provides a reasonable estimate but isn't as accurate as methods like DEXA scans or hydrostatic weighing. It's best for tracking changes over time rather than absolute values.