Density and Mass
gtokg
Convert grams (g) to kilograms (kg).
Factor1 g = 0.001 kg
Converter
g
Accepts numbers or expressions, e.g. 150 + 14.7
Result
kg
Rendered to 6 significant figures.
Formula
Formula
kg = g × 0.001
Multiply any value in grams by 0.001 to obtain the value in kilograms.
Worked example
Convert 5000 g to kg.
- 01Start with 5000 g.
- 02Multiply by the conversion factor: 5000 × 0.001 = 5 kg.
Result5000 g = 5 kg
Conversion table
| g | kg |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 200 | 0.2 |
| 500 | 0.5 |
| 1000 | 1 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from g to kg?
1 g equals 0.001 kg. To convert, multiply the value in grams by 0.001.
How do I convert 1 g to kg?
1 g = 0.001 kg. For any value, multiply by 0.001.
How do I convert kg back to g?
Divide by the same factor — or equivalently, multiply by 1000. So 1 kg = 1000 g.
When would I need to convert gram to kilogram?
Mass conversions appear in material balances, reagent dosing, and reconciling vendor specifications across imperial/metric systems.
Is the conversion exact?
Yes. Both g and kg are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).