kg to lbs FREE
Convert kilograms to pounds and back, on the exact 1959 definition rather than a rounded factor. Type a weight and read it off; swap the units for the other direction.
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The formula
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Every conversion is calculated in this tab. Nothing is sent anywhere, which is also why the result appears as you type rather than after a round trip to a server.
How the conversion is done
One pound is 0.45359237 kilograms exactly, fixed by the international yard and pound agreement of 1959. Everything here follows from that one number, so 1 kg is 2.20462262184878 lb and the rounding you see is the rounding you asked for, not a limit of the tool.
Kilograms and pounds are both units of mass, which is why the same conversion holds on the Moon and why no gravity constant appears in it. Force is a different quantity and has its own category, where the kilogram-force and the pound-force live.
The panel underneath restates the same weight in grams, tonnes, ounces and stones at once, which is usually the next thing you wanted. The arithmetic runs in this tab, so it works with the network off and nothing you type is sent anywhere.
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