how much is three stone?
The Maths is simple. There are 14 pounds in each stone. Therefore 8.10x14=113.4 pounds. Try it on a calculator! (If by 8.10 stones, you meâ¦ant 8 stones and 10 pounds or 8 stones and 1 pound then the above answer is not correct. But, it is still quite easy to work out, if you realise that 8 stones is equal to 8x14 pounds or 112 pounds.