Bodyfat Calculator

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Bodyfat Calculator Instructions

BF Calculator (Numbers)
File Size: 103 kb
File Type: numbers
Download File

BF Calculator (Excel)
File Size: 103 kb
File Type: numbers
Download File

*Note: This calculator is only accurate for untrained/novice level trainees. When a person already has more than average muscle mass, it will skew the data and likely overestimate bodyfat. For anyone with appreciable muscle mass (a.k.a. someone who has been training regularly for 6+ months), I recommend alternate version of body composition tracking. This includes Skinfold Caliper measurements or DEXA Scanning, the "gold standard" for tracking body composition.

This calculator is adapted from a study published by Deurenberg et al. in 1991. It assumes that at an equivalent level of leanness, women carry roughly 10.8% more bodyfat than men. Therefore, a male with 10% bodyfat according to the calculator would appear to be just as lean as a woman carrying 20.8% bodyfat.

​To use this calculator, you simply need to know your height, scale weight, gender and age (which I hope are all very easy to figure out!).
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