Convert kg to g
Convert kg to g instantly. 1 kg = 1,000 g. Formula, worked examples and a quick reference table.
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One kilogram equals 1,000 grams. To convert any number of kilograms to grams, multiply by 1,000.
The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.
Weight and mass conversions matter most in three places: shipping, where a rate band can turn on a single kilogram; cooking, where recipes cross between metric grams and imperial ounces; and personal weight, where Britain and Ireland use stones, the United States uses pounds, and everywhere else uses kilograms. Strictly these are mass units rather than weight units, and the distinction only bites in physics, where weight is a force measured in newtons.
kg to g formula
To go the other way, use kilogram = gram ÷ 1,000.
About these units
Since 2019 the kilogram has been defined by the Planck constant rather than a metal cylinder in Paris, making it reproducible in any properly equipped laboratory.
The gram is a thousandth of a kilogram. It is the base unit of nearly every recipe outside the US, and the reason kitchen scales beat cup measures for consistency.
Kilogram is also written kilogramme, kilogrammes, kilograms, kilos, kilo and kgs. Gram is also written gramme, grammes, grams, gm and gms.
Sources
kg to g conversion table
| Kilogram | Gram |
|---|---|
| 1 kg | 1,000 g |
| 2 kg | 2,000 g |
| 3 kg | 3,000 g |
| 5 kg | 5,000 g |
| 10 kg | 10,000 g |
| 20 kg | 20,000 g |
| 25 kg | 25,000 g |
| 50 kg | 50,000 g |
| 100 kg | 100,000 g |
| 250 kg | 250,000 g |
| 500 kg | 500,000 g |
| 1,000 kg | 1,000,000 g |
Frequently asked questions
How many grams are in a kilogram? +
There are 1,000 grams in one kilogram.
What is 10 kg in g? +
10 kg equals 10,000 g. Multiply 10 by 1,000.
How do I convert gram back to kilogram? +
Use kilogram = gram ÷ 1,000. The converter above handles both directions, or see our dedicated g to kg page.
How accurate is this kilogram to gram conversion? +
The factor used is 1,000, carried at full double precision. Where a unit has an exact legal definition the factor is exact rather than approximate. Rounding is applied only to the displayed result, so the answer is never a calculation done on an already-rounded number.
Is there a quick way to estimate kg to g in my head? +
Multiply by 1,000. That matches the true factor of 1,000 exactly, so no adjustment is needed for a mental estimate.