75.4kg is 11 stone 12.2lbs
71 kg = 11 st and 2.52 lb
So 150 kgs = 23.6209566627 stones
lbs x 0.454 (or 0.453592) = kgs
In stones~about 17.3 In pounds~242
A stone is 14 lbs. 86 kgs is 2.24 x 86= 192.64 lb divided by 14 = 13.76 stones (more usually referred to, using stones and pounds, as 13 stones 10½ lbs)
kg x 2.20462 = lbs
11.8104783 stones
1 stone = 6.35 kgs so 15 kgs = 2.3 stones .
10 stones 16 pounds is equal to about 70.9 kgs.
74 kgs = 11.6 (11.653) stone.
19 stones = 120.656kg