The richest collection of free online calculators—Body Fat Calculator

Body Fat Calculator

This body fat calculator can be used to estimate your body fat based on your size. Use the "metric units" tab if you are more comfortable with the international standard metric units. To get the best results, please measure to the nearest 1/4 inch (0.5cm). This calculator is based on US Navy method.

Related:BMI calculator | calorie calculator | ideal weight calculator

sex    
height feet inchs
neck feet inchs
waist feet inchs
hip feet inchs
height centimeters
neck centimeters
waist centimeters
hip centimeters
 

Reference*

DescriptionWomenMen
Recommended amount20-25%8-14%
Adults in United States, average22-25%15-19%
Obese30%+25%+

According to Health Check Systems, The American Council on Exercise has categorized ranges of body fat percentages as follows:

DescriptionWomenMen
Essential fat12-15%2-5%
Athletes16-20%6-13%
Fitness21-24%14-17%
Acceptable25-31%18-25%
Obese32%+25%+

* from wikipedia.org


This body fat calculator uses the US Navy Method
body fat calculator formula for man:
495/(1.0324-0.19077(LOG(waist-neck))+0.15456(LOG(height)))-450
body fat calculator formula for woman:
495/(1.29579-0.35004(LOG(waist+hip-neck))+0.22100(LOG(height)))-450