Thread: how much does 5% of my body fat weigh?

1. how much does 5% of my body fat weigh?

Im 137lb with a 14% body fat, if I want to reduce that to 9% body fat while maintaining my lean mass what will my end mass be? In other words, how heavy would 5% of my body fat at 137lb be? Thanks in advance.

2. Originally Posted by chris4245
Im 137lb with a 14% body fat, if I want to reduce that to 9% body fat while maintaining my lean mass what will my end mass be? In other words, how heavy would 5% of my body fat at 137lb be? Thanks in advance.
you would be lighter then my wife at 9% bf.

3. 7 lbs of fat.

You definitely should bulk first though. Also whats your height?

4. Originally Posted by Cuongpham
you would be lighter then my wife at 9% bf.
Get her a gym membership

5. Originally Posted by chris4245
Im 137lb with a 14% body fat, if I want to reduce that to 9% body fat while maintaining my lean mass what will my end mass be? In other words, how heavy would 5% of my body fat at 137lb be? Thanks in advance.
It doesn't exactly work like that, % changes as body mass changes. But you'll need to lose around

omg I think I did it right (I suck at math) (just came up with this now but it makes sense)

137 * 0.14 = 19.18 Fat

Desired BF% = 9% = 0.09

x = weight you need to lose, assuming it's all fat

(137-x)(0.09) = (19.18 - x)

12.33 - 0.09x = 19.18 - x

x-0.09x = 6.85

x = 6.85/(1-0.09)

x = 7.53lbs

6. Originally Posted by FeelTheFear
It doesn't exactly work like that, % changes as body mass changes. But you'll need to lose around

omg I think I did it right (I suck at math)

137 * 0.14 = 19.18 Fat

Desired BF% = 9% = 0.09

x = weight you need to lose, assuming it's all fat

(137-x)(0.09) = (19.18 - x)

12.33 - 0.09x = 19.18 - x

x-0.09x = 6.85

x = 6.85/(1-0.09)

x = 7.53lbs
you could have just

137/100
1.37*5
= 6.85

7. Originally Posted by xSup3r
you could have just

137/100
1.37*5
= 6.85

intredasting... although if I hadn't set it up like that I wouldn't have known to do 6.85 / (1-0.09).

I had no idea that (137*[BF%change])/(1-[final BF%]) would equal that.. mind ****ing blown

8. Lol @ overcomplicated maths.

Inaccurate in any case as you can't predict how much non-adipose body mass you would lose

9. C'mon guys, just find 10% of 137 which is 13.7 and half it. no need for any calculations outside of simple mental arithmetic :/

10. Originally Posted by Cuongpham
you would be lighter then my wife at 9% bf.
Age : 14

11. Originally Posted by CyberSheriff
7 lbs of fat.

You definitely should bulk first though. Also whats your height?
im 5'7 and 17 yo, how much should I bulk till, cos I don't want to look too wide as that will make me look stumpy.. is 143lb good weight to stop bulking, any advice? thanks

12. Originally Posted by chris4245
im 5'7 and 17 yo, how much should I bulk till, cos I don't want to look too wide as that will make me look stumpy.. is 143lb good weight to stop bulking, any advice? thanks
Id go up to 160 and do heavy compound lifts to get a bigger frame and the mass. Just dont breakaway and become fat but keep your mindset on your final goal. Its a marathon not a sprint.

13. Originally Posted by PMW
Id go up to 160 and do heavy compound lifts to get a bigger frame and the mass. Just dont breakaway and become fat but keep your mindset on your final goal. Its a marathon not a sprint.
alright thanks man, its normal that i can't see my abs right now right? cos i haven't started cutting..

14. You ****ed up the wording in the title.

5% of your bodyfat (19.18lbs) would be equivalent to .959lbs

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