Body fat calculatorYour body fat, with a tape.
Waist, neck and height (and hips for women). No smart scale needed.
Your estimated body fat
16.2 %
- Fat mass
- 12.1 kg
- Lean mass
- 62.9 kg
4You keeps your weight and body fat (also from Apple Health or Health Connect) and shows you the trend.
How to measure
The calculator uses the US Navy method. Measure your waist at the navel, relaxed; your neck just below the Adam's apple; and, for women, your hips at the widest point. Measure in the morning, before eating.
It carries an error of 3 to 4 points against a DEXA scan: use it to track your trend.
FAQ
Is the Navy method accurate?
It's an estimate with an error of 3 to 4 points, similar to many smart scales. It works well to track your progress with the same method.