How to interpret this estimate

This calculator estimates body-fat percentage, fat mass, and lean mass from circumference measurements and body weight.

When this result is useful

Use it for additional context beyond BMI, especially when measurements are taken consistently over time.

Common limitations

Circumference formulas are estimates rather than scans. Tape placement, hydration, posture, body shape, and measurement consistency affect the result.

This calculator uses the selected inputs and the fixed formula behind the tool to produce an estimate. Review the units, assumptions, and result labels before using the output for planning.

Health results are screening or planning estimates only. They do not diagnose health status or replace advice from doctors, dietitians, or qualified healthcare professionals.

Read the medical disclaimer for more context.