RFM calculator calculates the relative fat mass based on gender, height and waist circumference.
Relative Fat Mass Calculator |
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Gender | Male       Female | |
Height | feet
inches |
cm |
Waist Circumference | feet
inches |
cm |
Relative Fat Mass | |
Classification |
The relative fat mass formula is
for women:
RFM = 76 - 20 x height / waist
for men:
RFM = 64 - 20 x height / waist
while
RFM = relative fat mass
height = height in cm
waist = waist circumference in cm
Example
For example, if a woman's height is 5 ft 6.93 inches (170 cm) and her waist is 70 cm.
The relative fat mass is calculated as:
76 - 20 x 170 / 70
=27.43 %
Classification | Fat Level (Men) | Fat Level (Women) |
---|---|---|
Less than Essential Fat | <2% | <10% |
Essential Fat | 2-5% | 10-13% |
Athletes | 6-13% | 14-20% |
Fitness | 14-17% | 21-24% |
Average | 18-24% | 25-31% |
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