How to convert grams to kilograms
Grams and Kilograms both measure weight, so converting is a single multiplication. One g equals 0.001 kg, so you multiply your grams value by 0.001.
Formula: kilograms = grams × 0.001. For example, 10 g = 0.01 kg.
Grams to Kilograms conversion table
| Grams (g) | Kilograms (kg) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 1,000 | 1 |
Grams and Kilograms explained
Grams (g): The base metric unit of mass, used for food, ingredients and small items.
Kilograms (kg): One thousand grams, the SI base unit of mass and the everyday metric weight.
When you'd convert grams to kilograms
You'll convert grams to kilograms whenever a measurement is given in one unit but you need it in the other — comparing grams and kilograms figures across regions, following a recipe or spec, or double-checking a number. Because 1 g is exactly 0.001 kg, the result is precise every time.
Frequently asked questions
How many kilograms are in a gram?
One g equals 0.001 kg. Multiply your grams figure by 0.001 to get kilograms.
What is the formula to convert grams to kilograms?
kilograms = grams × 0.001. The factor 0.001 is exact.
What is 2 grams in kilograms?
2 g = 0.002 kg. You can enter any value in the converter above to get an instant result.
Is this Grams to Kilograms converter accurate?
Yes. It uses the standard conversion factor (1 g = 0.001 kg) defined by BIPM — SI Brochure (definition of the kilogram), so results are exact to several decimal places.