Body Fat Calculator
Estimate your body fat percentage with a tape measure. No scale tricks, no fancy gadgets.
How to measure
Measure your neck just below the Adam's apple and your waist at the navel (men) or narrowest point (women), with the tape snug but not squeezing. Women also measure hips at the widest point. The US Navy formula is usually within a few percent of lab tests.
FAQ
How accurate is the tape measure body fat method?
Typically within about 3–4% of lab methods, and very good for tracking change over time if you measure the same way.
What's a healthy body fat percentage?
Roughly 10–20% for men and 18–30% for women is a common healthy range.
Estimates only, based on standard formulas. Not medical advice. If you have a medical condition, are pregnant, or are under 18, talk to your GP first.
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