Group: General Fitness & Exercise

General Fitness & Exercise
Created: 2011/12/31, Members: 382, Messages: 54581

Various general exercise related discussions. Find out what it takes to reach your fitness goals through daily effective exercise. With so many options we try to find out what works best.

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Formula for Body Fat

INTRUDER
INTRUDER
Posts: 642
Joined: 2002/06/27
United States
2002/08/15, 01:01 PM
Lots of people seem to want an idea of what it takes to reach a desired percent body fat. This formula that I use comes from the Army Physical Fitness School, FT Benning, GA. Here it is, you will need a calculator:

LBM = BW X (1.00 - % BF)

KEY: LBM = LEAN BODY MASS
BW = BODY WEIGHT
BF = BODY FAT

TW = LBM divided by (1.00 - Desired % BF)

KEY: TW = TARGET WEIGHT

Here is an example of how to work this formula:
Individual is 180 lbs. 25% BF and wants to be at 18% BF.
1 - .25%BF = .75
.75 X BW180 = 135 LBM
1 - .18%BF = .82
TW = 135 divided by .82 = 165 TW
180 - 165 = 15 LBS
LOSE: 15 lbs to reach desired TW of 165 and make your desired BF of 18%

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tokatlin
tokatlin
Posts: 14
Joined: 2002/01/30
Turkey
2002/08/15, 04:26 PM
thanks intruder,appreciate.