💪 Body Fat Calculator
How It Works
Estimate body fat percentage using the U.S. Navy method with tape measurements. Use Body Fat Calculator as a general estimate from the measurements and assumptions you enter.
The result is most useful when the inputs match the definitions used by this calculator. For this tool, the underlying method is: Uses circumference measurements (waist, neck, height) with gender-specific formulas developed by the U.S. Navy.. Compare the output with the worked example, then change one meaningful input at a time to see how the result responds.
Understanding Body Fat
Body Fat is a general health or fitness estimate based on the measurements and assumptions requested by the calculator.
Keep in mind: Health estimates are not diagnoses and can differ from an individual's actual needs or measurements. Review the body fat inputs and units before relying on the result.
When to Use This Calculator
Use Body Fat Calculator as a general estimate from the measurements and assumptions you enter.
Practical tip: For this Body Fat Calculator, use the result as a starting estimate and change one measurement or activity assumption at a time so you can see how sensitive the estimate is.
Formula
Uses circumference measurements (waist, neck, height) with gender-specific formulas developed by the U.S. Navy.
Example
A male with 85cm waist, 38cm neck, and 175cm height has approximately 15% body fat.