Body Fat Calculator

Body Fat Calculator

Estimate body-fat percentage from circumference measurements using the US Navy method. Measure consistently; this is an estimate, not a medical body-composition assessment.

Method and assumptions

Figur applies straightforward arithmetic to the values you enter. The calculation runs locally in your browser and is not stored.

• The result depends on accurate inputs and units.
• External factors, fees, taxes, or rules not requested by the calculator are not included.
• Use the result as a planning estimate and verify any high-stakes decision.

Sources and references

No external data source is required: this calculator uses standard arithmetic and the values you enter.

Frequently asked questions