How to convert grams to kilograms
- 1
Take your value
Start with your value in grams.
- 2
Multiply by 0.001
Multiply the gram value by 0.001. This is the exact conversion factor from grams to kilograms.
- 3
Read the result
The product is your value in kilograms. For example, 5 g × 0.001 = 0.005 kg.
Conversion formula
The exact factor from grams to kilograms is 0.001.
Kilograms = Grams × 0.001
Grams to Kilograms conversion table
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
Conversion table from grams to kilograms| Grams (g) | Kilograms (kg) |
|---|
| 0.1 g | 0.0001 kg |
| 0.25 g | 0.00025 kg |
| 0.5 g | 0.0005 kg |
| 1 g | 0.001 kg |
| 1.5 g | 0.0015 kg |
| 2 g | 0.002 kg |
| 2.5 g | 0.0025 kg |
| 3 g | 0.003 kg |
| 4 g | 0.004 kg |
| 5 g | 0.005 kg |
| 6 g | 0.006 kg |
| 7 g | 0.007 kg |
| 8 g | 0.008 kg |
| 9 g | 0.009 kg |
| 10 g | 0.01 kg |
| 12 g | 0.012 kg |
| 15 g | 0.015 kg |
| 18 g | 0.018 kg |
| 20 g | 0.02 kg |
| 25 g | 0.025 kg |
| 30 g | 0.03 kg |
| 35 g | 0.035 kg |
| 40 g | 0.04 kg |
| 45 g | 0.045 kg |
| 50 g | 0.05 kg |
| 60 g | 0.06 kg |
| 70 g | 0.07 kg |
| 75 g | 0.075 kg |
| 80 g | 0.08 kg |
| 90 g | 0.09 kg |
| 100 g | 0.1 kg |
| 120 g | 0.12 kg |
| 125 g | 0.125 kg |
| 150 g | 0.15 kg |
| 175 g | 0.175 kg |
| 180 g | 0.18 kg |
| 200 g | 0.2 kg |
| 225 g | 0.225 kg |
| 250 g | 0.25 kg |
| 275 g | 0.275 kg |
| 300 g | 0.3 kg |
| 350 g | 0.35 kg |
| 400 g | 0.4 kg |
| 450 g | 0.45 kg |
| 500 g | 0.5 kg |
| 600 g | 0.6 kg |
| 750 g | 0.75 kg |
| 1000 g | 1 kg |
| 2000 g | 2 kg |
| 5000 g | 5 kg |
Real-world reference
A standard paperclip is about 1 g. A US nickel weighs 5 g. A small pencil weighs around 7 g.
Frequently asked questions
- How many kilograms are in 1 gram?
- 1 gram equals 0.001 kilograms.
- How do I convert grams to kilograms?
- Multiply the gram value by 0.001. So x g × 0.001 = the equivalent in kg.
- What is 5 grams in kilograms?
- 5 grams equals 0.005 kilograms.
- What is 10 grams in kilograms?
- 10 grams equals 0.01 kilograms.
- What is 100 grams in kilograms?
- 100 grams equals 0.1 kilograms.
- How do I convert back from kilograms to grams?
- Multiply the kilogram value by 1000. For example, 1 kg = 1000 g.
- Is the gram bigger than the kilogram?
- No. 1 gram is smaller than 1 kilogram. It takes 1000 grams to equal 1 kilogram.
- Are these conversion factors exact?
- Yes. The factor of 0.001 is derived directly from the SI definitions of gram and kilogram.
About the gram and the kilogram
The gram
The gram (g) is a metric unit of mass equal to one-thousandth of a kilogram. It is the everyday unit for food labeling, postage, jewelry, and laboratory measurements. The 2019 SI redefinition fixed the kilogram (and therefore the gram) in terms of Planck's constant, ending more than a century of dependence on a physical prototype.
The kilogram
The kilogram (kg) is the SI base unit of mass. Since the 2019 redefinition it is defined by fixing the Planck constant to exactly 6.62607015 × 10⁻³⁴ J·s, replacing the old International Prototype Kilogram artifact. In everyday use, the kilogram is the global standard for body weight, groceries, and engineering specifications.