Why use an online FFMI calculator?
MYcalcu’s FFMI calculator provides the exact and accurate fat-free mass index of your body.
This calculator is considered even more precise than the BMI calculators.
There are no payment or login restrictions. It’s 100% free.
How does it work?
The FFMI describes the amount of your muscle mass in relation to your height and weight.
There are three input fields that must be filed in order to get your FFMI: height, weight, and body fat in %.
How to use the FFMI calculator?
Enter your height, weight, and body fat in% to get your FFMI.