Convert grams to kilograms
Enter a value in grams to convert it to kilograms.
grams to kilograms reference
| grams | kilograms |
|---|---|
| 1 g | 0.001 kg |
| 2 g | 0.002 kg |
| 5 g | 0.005 kg |
| 10 g | 0.01 kg |
| 25 g | 0.025 kg |
| 50 g | 0.05 kg |
| 100 g | 0.1 kg |
The conversion factor
One gram is 0.001 kilograms. So to convert, multiply your figure in grams by 0.001. To go the other way, multiply kilograms by 1000, or use the kilograms to grams converter.
Doing it in your head
For a quick estimate, round the factor: roughly "divide by 1000". Use the exact converter above when the number matters.
Where this conversion comes up
Recipes, shipping and luggage limits, body weight, and nutrition labels.
See the common unit conversions cheat sheet for the factors worth memorising.
Related tools
Frequently asked questions
How many kilograms are in a gram?
1 gram = 0.001 kilograms.
What is the formula to convert grams to kilograms?
Multiply the number of grams by 0.001. To go back the other way, multiply kilograms by 1000.
What is 10 grams in kilograms?
10 grams = 0.01 kilograms. The reference table below lists more common values.
Is this converter accurate?
It uses the internationally defined conversion factors and computes at full floating-point precision, then rounds only the displayed result. For everyday purposes it is exact; for legal, engineering or scientific work, confirm the required number of significant figures.
Does it work offline?
Yes. The conversion runs in your browser with no server call, so it keeps working with no connection, and nothing you enter is uploaded.
Last reviewed: September 2026. Figures and formulas are checked against their published sources; see the site's data notes.