Body Fat Calculator (US Navy)
Estimate body fat percentage from tape measurements.
Your result
Estimated body fat is 17.8%. The Navy method is accurate to within a few percentage points for most adults.
Medical disclaimer: This tool is for education and is not medical advice. Read more.
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Frequently asked questions
What does the Body Fat Calculator (US Navy) do?
Estimate body fat percentage from tape measurements. Enter your values and the result and chart update instantly.
How accurate is it?
It uses published, widely used formulas. Results are estimates for education and planning, not a diagnosis. Talk to a qualified clinician about decisions affecting your health.
Is my information stored or shared?
No. All calculations run in your browser and nothing you type is sent to a server or saved.
What can I search to find this tool?
People find it by searching for: how much body fat do i have; body fat percentage; measure fat with tape; am i fit or fat.