Body Composition Calculator
Calculate your body fat percentage, lean mass, and FFMI
Your Measurements
Circumference Measurements
Body Composition Results
Body Fat Percentage
17.4%
Category: Fitness
Fat Mass
31.4 lbs
Lean Mass
148.6 lbs
BMI
25.8
FFMI
21.3
Normalized FFMI
21.5
Target Body Fat Goals
Target BF%
10%
Target Weight
165.1 lbs
Fat to Lose
14.9 lbs
Target BF%
12%
Target Weight
168.9 lbs
Fat to Lose
11.1 lbs
Target BF%
15%
Target Weight
174.8 lbs
Fat to Lose
5.2 lbs
Target BF%
18%
Target Weight
181.2 lbs
Fat to Lose
-1.2 lbs
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.