Convert Grams to Kilograms
Enter the value in grams to get its exact equivalent in kilograms instantly.
How to convert grams to kilograms?
To convert a measurement in grams (g) to kilograms (kg), we multiply the value by the conversion factor 0.001.
kg = g × 0.001
The kilogram is the base unit of mass in the International System. Since 2019, it's no longer defined by a physical reference object (the former platinum-iridium cylinder in Paris), but by a fundamental physical constant, the Planck constant.
| Grams (g) | Kilograms (kg) |
|---|---|
| 1.00 | 0.001000 |
| 5.00 | 0.005000 |
| 10.00 | 0.0100 |
| 50.00 | 0.0500 |
| 100.00 | 0.1000 |
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Frequently Asked Questions
How many kilograms are in 1 gram?
1 g equals exactly 0.001 kilograms.
Is the platinum cylinder in Paris still used to define the kilogram?
No. Since May 2019, the kilogram has been redefined based on the Planck constant, a fixed physical value, so that it no longer depends on any physical object that could wear down or change.