How many pounds are in a kilogram?
One kilogram is 2.20462 pounds. The exact direction is the other way: one pound is exactly 0.45359237 kg by definition.
Weight Converter
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Why the pound is an exact number
The avoirdupois pound has been exactly 0.45359237 kilograms since 1959. Before that, the US and the UK each had their own slightly different pound, and scientific work had to say which one it meant. The agreement fixed a single value, defined from the kilogram.
The stone is still common in the UK and Ireland for body weight, and nowhere else. It is exactly 14 pounds, so 70 kg reads as roughly 11 stone.
Frequently asked questions
How many ounces are in a pound?
Sixteen. The avoirdupois ounce is one sixteenth of a pound, or about 28.35 grams. The troy ounce used for precious metals is different — about 31.1 grams.
What is a stone in kilograms?
One stone is 14 pounds, or about 6.35 kg. It is used for body weight in the UK and Ireland, usually written as "11 stone 4" rather than as a decimal.
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