Now you have a pretty good idea about what FFMI is and how it’s used. But here are some quick answers to other common questions surrounding FFMI.
How is FFMI calculated?
The calculation for FFMI is lean mass/height2. Where lean mass is weight-(weight*body fat percentage/100).
This FFMI calculator also considers your gender to give you a relative score.
What is a good FFMI?
For men, the average FFMI is 19.5. But you should shoot for an FFMI of at least 21.5 if you want to stand out at the gym.
An average FFMI for women is 15.5. So an FFMI of 17.5 would likely get you noticed.
What is a suspicious FFMI?
An FFMI of 26-28 should draw suspicion of steroid use among male bodybuilders. While an FFMI over 28 is almost certainly the result of steroids.
Keep in mind that FFMI is not a definitive cutoff. So it would be best if you didn’t blast people on social media for being “fake natty” without knowing more about their background.
Are FFMI and BMI the same thing?
Both FFMI (fat free mass index) and BMI (body mass index) categorize people based on height and weight. But they are not at all the same thing!
BMI only accounts for your total body weight, whereas FFMI considers your body composition. Therefore, FFMI is generally more accurate for active people and is a better tool for finding your ideal weight.
Is FFMI a good measure?
FFMI can be a helpful tool for assessing your current fitness level and setting future goals. And it is better than BMI for people who lift weights.
However, it would be best to consider multiple measurements and metrics to achieve optimal health and fitness.