Body Fat Calculator
Estimate body fat percentage with the U.S. Navy tape-measure method.
Result
How to use
- 1
Measure your neck, waist (and hips for women) with a tape.
- 2
Enter your height and measurements.
- 3
See your estimated body fat and category.
Questions
How accurate is the Navy method?
It is a reasonable estimate for most people, usually within a few percent of lab methods. Measure carefully and at the same time of day.
Where do I measure?
Neck just below the larynx; waist at the navel for men and at the narrowest point for women; hips at the widest point.
About this Body Fat tool
Body Fat Calculator — Estimate body fat percentage with the U.S. Navy tape-measure method. It is one of 200 free tools on namasivayam.in, made by software engineer Namasivayam Vadivelan for everyday use in India.
Everything is calculated instantly in your browser: nothing you type or upload is sent to any server, there is no sign-up, and it works on mobile and desktop. Measure your neck, waist (and hips for women) with a tape.
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Results are estimates to help you plan. They are not financial, tax or medical advice.