T Nation

Translating Inches to Pounds

Does anyone know how many pounds of fat an inch on your stomach equals. Obviously, the bigger the waist size the higher the fat. For example, an increase from 36 to 37 inches would require more fat than an increase from 25 to 26, since the circumference is bigger in the former measurement.

I’m just wondering if there’s some sort of formula or direct relationship between the two. For me, I had an increase from 32 to 33 inches and I’m wonder what that would translate too.

for me, i have been cutting since dec 07. Averaging mine out it comes to about 2lbs of fat per 1/4 inch.

I don’t think you can put a number on it though. That is why you need to track your body fat %.

Hmmmm…so I’ve put on about 14 lbs and one inch of fat on my stomach. That would translate into 8 lbs of fat and 6 lbs of muscle! That doesn’t sound very good to me.

I am fairly sure there are millions of individual differences in this. Including variables such as height…

I did some playing around with the calculator on this site: http://www.healthcentral.com/cholesterol/home-body-fat-test-2774-143.html

It looks like 1" on the waist = 1% bf. I’m sure you’re right that as it goes up it increases but I didn’t see that from the calculator. I just kept everything the same and just changed to waist size.

This is impossible to measure because the body is different from person to person. People accumulate fat in different areas, at different rates, and at different densities (i.e. thickness).

Think about a dissection of your leg versus someone else’s leg… cut from 2 inch slabs on down… the fat deposits will not be equal to someone else’s leg.

In simpler terms. Does a slab of steak always have the same size fat deposits in the same location?

I think this is a great idea, but I don’t think it works.

  1. taller people have more surface area to spread fat out on
  2. the wider your circumference, the more fat you must have to add the same inch.

GustavPacho dropped 45lbs, and lost 9 inches off his belly measurement. Which would make 1 inch ~ 5lbs. Seems very individual.

That said, individual does not mean bad. It seems like a wise idea to track progress when dieting, and it seems like a wise idea to know when to reign in your kcal count on the way back up.

[quote]stuward wrote:
I did some playing around with the calculator on this site: http://www.healthcentral.com/cholesterol/home-body-fat-test-2774-143.html

It looks like 1" on the waist = 1% bf. I’m sure you’re right that as it goes up it increases but I didn’t see that from the calculator. I just kept everything the same and just changed to waist size.[/quote]

You’re right…I tried the calculations and it came out to that for me when I put in 32 and 33 inches. I’m surprised that the number was so low. Anyway, I don’t think the 1/4" = 2 lbs fully applies to me, because the other poster who said that was 6’1" and I’m 5’6".

Anyway, I guess I haven’t put on as much fat as I originally thought. Last week I went out and bought new clothes. Medium use to fit me, but it’s pretty tight on me now…I’m happy about that since it shows I’m growing. I can only wear large now. If my new pants start getting too tight around the waist I’ll go into a cutting phase. That’s my plan.