Medical-grade calculations made simple
US Navy-approved formulas with scientific validation
Generate shareable reports with visual charts
Zero data collection - all calculations stay on device
86.010 × log10(waist - neck) - 70.041 × log10(height) + 36.76
163.205 × log10(waist + hip - neck) - 97.684 × log10(height) - 78.387
Our formulas are based on the US Navy body fat equation, which has been validated through numerous clinical studies. Accuracy is within ±3% for most individuals when measurements are taken properly.
The app automatically detects your system units - works seamlessly with both metric (cm/kg) and imperial (inches/lbs) systems.
Available exclusively on iOS
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