Body Fat Calculator
Estimate your body fat percentage using the US Navy Method. Accurate measurement without calipers or expensive equipment.
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Body Fat Calculator
Estimate body fat percentage (US Navy Method)
How It Works
- Select your measurement system (Metric or Imperial).
- Select your gender (calculation differs for men and women).
- Measure and enter your Height, Waist, and Neck circumference.
- For females, also enter Hip circumference.
- Click "Calculate Body Fat" to see your estimated percentage.
Use Cases
- Tracking fitness progress
- Health risk assessment
- Setting weight loss goals
- Bodybuilding cut monitoring
Frequently Asked Questions
How accurate is the US Navy Method?
It is considered one of the most accurate "tape measure" methods, typically within 1-3% of hydrostatic weighing.
Why do I need neck measurement?
Neck circumference is used as a proxy for lean body mass distribution in the formula.
Is it suitable for athletes?
It can be reasonably accurate, but highly muscular individuals might get a slightly inflated reading.
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