Body Fat Calculator
Estimates body fat percentage using the U.S. Navy circumference method.
Every calculation runs instantly in your browser, so your inputs are never sent to a server, and the tool is free with no sign-up. You can save the results as an Excel file with live formulas and reuse them later.
Inputs
- Sex
- Height (in)
- Neck (in)
- Waist (in)
- Hip (women) (in)
Example calculation
Body fat %: 18%
| Category | Fitness |
|---|
Method & notes
U.S. Navy circumference method (inches). An estimate; measurement technique affects accuracy.
Tips
Change any input and the result recalculates in real time. After downloading the Excel file, you can reuse it by editing only the yellow input cells.
FAQ
How does the Body Fat Calculator work?
Estimates body fat percentage using the U.S. Navy circumference method. U.S. Navy circumference method (inches). An estimate; measurement technique affects accuracy.
Can I save the results?
Yes. You can download the results for free as an Excel (.xlsx) file with live formulas that recalculate when you change the yellow input cells.
Is it free?
Yes — all Calcova calculators are free, and you can save results as an Excel file.