Free Online Body Fat
US Navy tape method for body fat percent, fat mass, and lean mass. Results are estimates for planning only.
Body fat
18.6%
- Category
- Average
- Fat mass
- 13 kg
- Lean mass
- 57 kg
Log in to save this operation.
Tasks
Get an estimate
Enter your details; results update as you type.
How to use
- Open the tool.
- Fill in the fields (metric units unless noted).
- Read the results.
FAQ
What does Body Fat do?
US Navy tape method for body fat percent, fat mass, and lean mass.
How do I get an estimate?
Enter your details; results update as you type.
How do I use Body Fat?
Open the tool. Fill in the fields (metric units unless noted). Read the results.
Is my data private?
Yes. Numbers and text you enter stay on this device. Results are local estimates only.
Anything else I should know?
For information only — not medical advice.