Enter a value into our weight conversion calculator to show results in every common unit at once, from micrograms to long tons. Choose your units and click “See Results”.
Each conversion is worked out exactly and rounded only for display, so the calculator can tell you when a figure is the true value and when it has been rounded.
Result
Conversion results with an exact number are shown in full and labelled “Exact”. The rest are shown to 10 significant figures and labelled “Rounded”.Conversion Factors Reference Table
Every factor below is exact by definition, not rounded. The pound is 0.45359237 kilograms, the grain is 64.79891 milligrams and the carat is 0.2 grams, and every other unit follows from those three.
| Unit | Symbol | Grams in one |
|---|
A short ton is 2,000 pounds and a long ton is 2,240 pounds. Both units are listed separately in our tool. Newtons are converted at standard gravity, which is 9.80665 m/s².
Last Updated 09/09/26
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