FFMI Calculator: Calculate Your Fat-Free Mass Index
Fat-free mass index (FFMI) estimates how much lean mass you carry relative to your height. It helps you understand how muscular you are relative to other people and assess whether a physique is likely attainable without steroids. To calculate your FFMI, enter your height, weight, and body-fat percentage into the Legion FFMI Calculator below. What Is FFMI? FFMI measures how much lean mass you carry relative to your height. Lean mass means everything in your body except fat, including muscle, bone, organs, and water. Because muscle makes up a large share of lean mass, FFMI works as a useful proxy for muscularity, even though it doesn’t measure muscle mass directly. Find the Perfect Supplements for You in Just 60 Seconds You don't need supplements to build muscle, lose fat, and get healthy. But the right ones can help. Take this quiz to learn which ones are best for you. Take the Quiz How to Calculate FFMI To calculate your FFMI, you first estimate your fat-free mass...