Free fitness calculator
Body Fat Calculator
Estimate body fat percentage using simple tape measurements.
About body fat estimates
Tape calculators estimate body fat using circumference measurements. They are not as accurate as scans, but they can show trends.
Consistency matters
Measure at the same time of day, with the same tape tension and same landmarks.
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Search queries this calculator helps answer
This page is written for people looking for quick calculator-style answers, including these common search phrases:
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How to use the result
Use the calculator output as a starting estimate. Check the assumptions, compare it to real-world results, and adjust if your situation changes.