i've got 3 different body fat % calculators that i'm attempting to use to track my progress (down to 303# with only diet and house chores/biking from 335+ (scale didn't go that high) back in march)

my wife pointed out that one arm looked larger then the other... measured and she's quite right

should I be measuring things like legs and arms on my dominant side? or both and average them?

just wondering :)
thanks

I wouldn't think it matters as long as you are consistent with your measurements. Given how unreliable body fat measurements are what's most important is the trend, not the absolute value.