Calculate your body fat percentage using the U.S. Navy method, a robust estimation used by medical and military professionals.
Physiological Metrics
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Composition Analysis
Enter your body measurements to calculate your estimated body fat percentage.
About this calculator
Overview
Body fat percentage is a much more useful measure of health than just weight or BMI alone. It tells you how much of your body mass is fat versus lean tissue (muscle, bone, organs, and water). The U.S. Navy method is a reliable calculation that uses body measurements to estimate this percentage without needing expensive equipment like DEXA scans.
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Pro Tips
Measure yourself in the morning for the most consistent results.
Ensure the tape measure is level and snug, but not compressing the skin when taking measurements.
Use body fat percentage to track multi-month trends rather than daily fluctuations.
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Fun Facts
"Essential body fat is the minimum amount of fat required for physiological and reproductive functions. For men, this is 2-5%, and for women, it's 10-13%."
"Lower body fat is generally associated with higher athletic performance, but going too low can lead to hormone imbalances and decreased immunity."
"The US Navy method has been shown to be surprisingly accurate, often within 3-4% of professional laboratory tests."
Formula: U.S. Navy Formula (Logarithmic Circumference Model)
