Body fat calculator
A quick estimate of your body fat percentage using the US Navy circumference method. The clinic's InBody scan gives the precise, repeatable version.
Body fat calculator
Estimate your body fat percentage
This tool estimates body fat with the US Navy circumference method. It is a quick estimate — the clinic's InBody scan is the more precise, repeatable measurement we use in assessments.
How to measure
Neck: just below the larynx. Waist: navel level for men; narrowest point for women. Hip (women only): widest point. Measure with a tape snug against the skin.
Your estimate
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Enter your measurements to estimate your body fat.
Get a precise InBody scan at the clinicThe Navy method is an estimate with roughly ±3% error. The InBody scan the clinic uses is a more precise and repeatable measurement.
About body fat percentage
- What is a healthy body fat percentage?
- For men, roughly 18–24%; for women, 25–31%. Ranges shift with age and are lower in athletes. What matters most is the trend — losing fat while keeping or gaining muscle.
- How accurate is the Navy body fat method?
- The US Navy circumference method estimates body fat within about ±3% for most people when measured correctly. It is a practical estimate; the clinic's InBody scan is a more precise, repeatable measurement.
- Why is body fat percentage better than BMI?
- BMI cannot distinguish fat from muscle. Two people with the same BMI can have very different body composition — one muscular and lean, one with excess fat. Body fat percentage captures that difference.
- Can I measure body fat at home accurately?
- Home scales with bioimpedance are convenient but can vary with hydration. The Navy tape method here is a good free estimate. For reliable tracking over time, a consistent method and measurement conditions matter more than absolute accuracy.