免费体脂率计算器(BMI法)
基于BMI值估算体脂百分比，适用于初步评估。
lbs
ft
in
years
Estimated Body Fat %
21.7 %
BMI25.8
Lean Mass %78.3 %
Estimated Body Fat % vs Weight
公式
## BMI-Based Body Fat Estimation (Male) **Body Fat % = 1.20 x BMI + 0.23 x Age - 16.2** This formula was developed by Deurenberg et al. and provides an estimate of body fat percentage using BMI and age. Note: This is the male formula. The female formula uses different constants (1.20 x BMI + 0.23 x Age - 5.4).
计算示例
A 30-year-old male, 180 lbs, 5'10".
- 01BMI = (180 x 703) / (70 x 70) = 25.8
- 02Body Fat = 1.20 x 25.8 + 0.23 x 30 - 16.2
- 03= 31.0 + 6.9 - 16.2 = 21.7%
常见问题
How accurate is the BMI body fat formula?
This method provides a rough estimate. It tends to overestimate body fat in muscular individuals and underestimate it in older adults. Direct methods like DEXA scans are more accurate.
Who developed this formula?
This formula was developed by Deurenberg, Weststrate, and Seidell (1991) and is widely cited in body composition research.
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