Body Fat Calculator
Body fat percentage using the US Navy circumference method.
cm
cm
cm
Body fat
16.9%
Fit
Category
Fit
ShowHide the working
- 1US Navy circumference method for men
- 2Result: 16.9%
Formula
US Navy circumference methodHow it works
Estimates body-fat percentage from body measurements using the US Navy method — no calipers needed, though it is less precise than a lab scan.
Example
A 175 cm man with a 38 cm neck and 85 cm waist is about 18% body fat.
For general information only, not medical advice. Individual needs vary — consult a qualified health professional.
About the Body Fat Calculator
Body fat percentage using the US Navy circumference method. It sits in the Health & Fitness section of NWS Calc, a free collection of calculators that run entirely in your browser. There is no signup, no paywall and no tracking — open the page, enter your numbers, get an answer.
Frequently asked questions
- Is the Body Fat Calculator free to use?
- Yes. Every calculator on NWS Calc is completely free, with no signup, no usage limits and no ads.
- Does my data leave my device?
- No. The Body Fat Calculator runs entirely in your browser using JavaScript. Nothing you type is uploaded, logged or stored on a server.
- Can I use the Body Fat Calculator on my phone?
- Yes. The page is fully responsive and works in any modern mobile or desktop browser — there is nothing to install.
- What else is in Health & Fitness?
- BMI, body fat, calories, macros, heart rate and training numbers. You can browse the full Health & Fitness category for related calculators.