doomath Calculator
Body Fat Calculator
Estimate body-fat percentage with the U.S. Navy circumference method.
InputsChange a value to recalculate instantly
ResultUpdates as you type
How it worksTransparent math
Calculation details are shown above.
Result breakdownSee the important numbers together
1Estimated body fat16.2%
2MethodU.S. Navy circumference method
λ DooMathWork with this calculation
Local · deterministic · optionalQuick mathNatural-language-style shortcuts for deterministic arithmetic.
Calculator guide
How to use the Body Fat Calculator
Estimate body-fat percentage with the U.S. Navy circumference method.
01Set inputsChoose values, units and assumptions.
02Apply the modelUse the stated mathematical relationship.
03Read the resultCheck the output against the assumptions before using it.
What this calculator does
Estimate body-fat percentage with the U.S. Navy circumference method.
Formula & method
The result is calculated from the inputs and assumptions shown in the calculator.
Assumptions & notes
Review the inputs, units and assumptions before using the result for a real decision.