Body Fat: Calulate vs Measure

[grglandr]

I have seen many calculators on the internet that claim to be accurate (ones that claim 100% I completely disregard) but some, like this one http://www.davedraper.com/bodyfat-calculation.html, seem more accurate and claim to be within 3%. I have actually put this equation into an Excel sheet where I track my progress so that it updates whenever I enter new info. I figure as long as I am consistent with how a track it, my result and goals will be constant and on target too.

But out of curiosity, I was wondering what others though particularly about this equation. Those of you that have calipers (I do not) i would appreciate your input on the result of this equation vs your caliper.

Regards,
Greg

[holvoetn]

I use a tape measurement method from US Army which involves measuring waist and neck. Then height gets added into the equation to calculate bf%.
From there lean mass can be deducted.
See here for an online version:
http://www.linear-software.com/online.html

Formula:
BF%=495/(1.0324-0.19077*(LOG(waist-neck))+0.15456*(LOG(height)))-450
(measurements in cm, there is also a version for inches but I am not using that )

I use the same approach as you, consistent way of measuring and tracking progress.
Aside the two mentioned parameters, I also keep track of arms, thighs and chest on an almost monthly basis to see how things evolve

[grglandr]

Thanks holvoetn! Maybe I will use mine, yours, and one more then just average them.