A weight converter converts between common weight units: kilograms, pounds, grams, ounces, stones, and metric tons. Weight and mass are often used interchangeably in everyday contexts, though technically weight is a force (mass × gravity).
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Pro Tip
To quickly convert kg to lbs mentally: multiply by 2 and add 10%. 70 kg → 70×2=140 + 10% = 154 lbs. Close enough for daily use.
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Did You Know?
The kilogram was redefined in 2019 in terms of fundamental physical constants (Planck's constant), replacing the International Prototype Kilogram — a platinum-iridium cylinder that had been THE standard kilogram since 1889.
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