Convert Gram to Kilogram
Use this free converter to change grams (g) into kilograms (kg). Gram and kilogram both measure weight & mass. As a quick reference, 1 g equals 0.001 kg, and 1 kg equals 1000 g.
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Kilogram (kg)
0.001
1 g = 0.001 kg
Weight & Mass conversion table
| Gram | Kilogram |
|---|---|
| 0.01 | 0.00001 |
| 0.1 | 0.0001 |
| 0.5 | 0.0005 |
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 1,000 | 1 |
How to convert Gram to Kilogram
Multiply the gram value by 0.001 to get kilograms.
- Enter the number of grams you want to convert.
- The converter instantly shows the equivalent value in kilograms.
- Worked example: 15 g × 0.001 = 0.015 kg.
- Use the swap button to reverse the conversion (kilogram to gram).
About these units
Gram (g)
- Definition
- A gram (g) is one thousandth of a kilogram, a small metric unit of mass used for light objects.
- History
- Defined in the 1790s as the mass of one cubic centimeter of water at its freezing point.
- Current use
- Grams are used for food portions, nutrition labels, postage, and laboratory work worldwide.
Kilogram (kg)
- Definition
- The kilogram (kg) is the SI base unit of mass, defined since 2019 by fixing the value of the Planck constant.
- History
- It was originally the mass of one liter of water, then a platinum-iridium cylinder kept near Paris until the 2019 redefinition.
- Current use
- The kilogram is the global standard for weighing goods, people, and ingredients in science and commerce.
Frequently asked questions
How many kilograms are in a gram?
There are 0.001 kg in 1 g. To convert, multiply the number of grams by 0.001.
How do I convert grams to kilograms?
Multiply the gram value by 0.001 to get kilograms. For example, 10 g = 0.01 kg.
Is this gram-to-kilogram converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Gram to other weight & mass units
| Unit | 1 Gram equals |
|---|---|
| Kilogram (kg) | 0.001 kg |
| Milligram (mg) | 1000 mg |
| Microgram (µg) | 1000000 µg |
| Metric Ton (t) | 0.000001 t |
| Pound (lb) | 0.0022046226 lb |
| Ounce (oz) | 0.035273962 oz |
| Stone (st) | 0.00015747304 st |
| US Ton (ton) | 0.0000011023113 ton |
| Imperial Ton (long ton) | 9.8421e-7 long ton |
| Carat (ct) | 5 ct |