Calculate weight based on body fat percentage This is the YMCA method for determining body fat perc

vestpn

vestpn

Answered question

2022-05-21

Calculate weight based on body fat percentage
This is the YMCA method for determining body fat percentage for a female based on weight and waist size:
76.76 + ( 4.5 A ) ( 0.082 B ) B = C
Where: A = Waist size in inches, B = Weight in lbs, C = Ratio of body fat.
I would like to re-arrange this formula to solve for B.
ie: determine target weight based on waist and body fat ratio.
Thanks in advance! :-)

Answer & Explanation

Megan Mathis

Megan Mathis

Beginner2022-05-22Added 10 answers

Cross multiply:
76.76 + 4.5 A 0.082 B = B C
Rearrange:
76.76 + 4.5 A = 0.082 B + B C
76.76 + 4.5 A = ( 0.082 + C ) B
So:
B = 76.76 + 4.5 A 0.082 + C

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