# Measuring bf%

Discussion in 'Fitness & Nutrition' started by awdboost, Sep 25, 2007.

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1. ### awdboostNew Member

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Hey guys pretty much like the title says. How do the majority measure ya bf% with calipers, scale, or other form??

2. ### FelixIts good to be me.

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I was wondering the same thing actually. In

3. ### dumbaznboyNew Member

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how accurate are the scale ones?

4. ### The Boy BastardBewbie's??

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Most use the mirror I would say. Unless you get hydrostatic weighting or dex-scan, the margin of error is high or very inconsistent based off many variables. A general rule of thumb for error:

Calipers + 8 measurement sites = +/- 3% to 5%
Calipers + 4 or less= +/- 5%-7%
Bioelectrical impedance (scales or hand held) = +/- 6%-10%

Calipers are highly dependant on the person performing the test and what formula they use; the formulas vary with how many placements you use.

Bioelectrical impedance is highly influenced by hydration levels.

5. ### lawrencel715New Member

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haha 6-10%, i have to agree on this for the hand held machines. i was at about 10% at one point, and i'm sure i was actually 14-16. it says i'm about 12% now. does that make me a potential 22% fatass? i'm probably more in the 14% range though.

6. ### evoludeOT Supporter

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more importantly are they precise?

if the scales are precise but not accurate, you can at the least track progress

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8. ### lawrencel715New Member

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my friend's scale put me as 18-20%, freaking thing. i refuse to believe that

9. ### evoludeOT Supporter

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haha... fatty

10. ### maksBah! t(-_-t)

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I track my bodyfat from my tanita scale readings. I don't believe the numbers but at least they are consistent.

I don't really care about the number, you could be a shitty looking 10% or a good looking 10%