Weight Converter
Convert pounds to kg, kg to pounds, ounces, stone, grams and tons — including pounds and ounces.
About this tool
Enter a weight, pick the unit you have and the unit you want. You get the exact conversion, the weight in pounds and ounces and in stone and pounds, and the same weight in every metric and imperial unit at once. Uses the exact definition 1 lb = 0.45359237 kg.
Frequently asked questions
Exactly 0.45359237 kg, as fixed by the international yard and pound agreement of 1959. So 1 kg is about 2.2046 lb, and 150 lb is 68.04 kg. A quick estimate: divide pounds by 2.2.
16 ounces. One ounce is 28.349523125 g, so 100 g is about 3.5 oz and 1 kg is 35.27 oz, or 2 lb 3.3 oz.
A stone is 14 pounds = 6.35029318 kg. It is still used for body weight in the UK and Ireland: 11 st 4 lb is 158 lb, or about 71.7 kg.
A metric tonne is 1,000 kg. A US (short) ton is 2,000 lb = 907.18 kg, and a UK (long) ton is 2,240 lb = 1,016.05 kg. Always check which one a figure uses.
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