Weight Converter
Convert between metric and imperial weight units instantly. Type any value to update all fields simultaneously.
Common Weight Conversions
How many pounds in a kilogram?
1 kilogram equals approximately 2.20462 pounds. To convert kg to lbs, multiply by 2.205. To convert lbs to kg, multiply by 0.4536. So 70 kg ≈ 154.3 lbs, and 150 lbs ≈ 68 kg.
How many kg in a stone?
1 stone equals 6.35029 kilograms (exactly 14 pounds). To convert stone to kg, multiply by 6.35. A person weighing 11 stone = 69.85 kg. The stone is unique to British and Irish customary usage — most other countries use kilograms exclusively.
How many grams in an ounce?
1 ounce (avoirdupois) equals 28.3495 grams. There are 16 ounces in a pound. Note: a troy ounce (used for precious metals) is different — 1 troy oz = 31.1035 g.
Why does the UK use both metric and imperial weight?
The UK officially switched to metric in the 1970s, but imperial units are still widely used informally. Body weight is typically given in stone and pounds, while food is sold in grams and kilograms. Road signs use miles, not kilometres. This dual system is unlikely to change soon given cultural familiarity.