Quote Originally Posted by DrPatrickBarry View Post
A couple of the vertically challenged blokes in the office (5' 8") are questioning that calculation. For me at just under 6 foot, it worked out at a believable figure.

Doing the calculation in Kg or lbs gives different results, obviously that is why some of you are getting odd results.
Working in Kg I get 70.7 kg (155.86 lbs)
Working in lbs I get 148 lbs

In his calculation he uses 2.296Kg or 5.5 lbs this is wrong it should be 5.06lbs.

But which one is correct metric or imperial?

Are US lbs different to UK lbs?
US lbs and UK lbs are the same, using metric is better and more accurate as there is chance of confusion. You are correct that 5.5lbs is wrong, it should be 5.06lbs. I hadn't noticed because I calculated in kgs only.