Grams to Kilograms
Convert grams to kilograms instantly, with a reference table.
Grams to Kilograms at a glance
Grams to Kilograms is a free online converter you can use right now to convert grams to kilograms instantly, with a reference table โ no account, no install and no usage limit. It runs entirely inside your browser, so whatever you enter stays on your own device.
- Price
- Free โ no trial, no paid tier, no watermark
- Sign-up
- Not required
- Where it runs
- In your browser โ nothing is uploaded to a server
- Works on
- Chrome, Safari, Firefox and Edge โ desktop, tablet and phone
- Category
- Unit Conversions
Grams to Kilograms conversion table
| Grams (g) | Kilograms (kg) |
|---|---|
| 1 g | 0.001 kg |
| 2 g | 0.002 kg |
| 3 g | 0.003 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 |
| 500 g | 0.5 kg |
| 1000 g | 1 kg |
About Grams to Kilograms
Convert grams to kilograms instantly, with a reference table of common values. The factor is exact: 1 g = 0.001 kg.
Used when accumulating gram measurements into a single figure โ totalling ingredient weights, or converting a nutrition figure into a shipping or bulk quantity.
The gram was originally defined as the mass of one cubic centimetre of water at its freezing point. It is now simply one thousandth of a kilogram, the base unit having overtaken it. It is the working unit of cooking, nutrition labelling and postage. Baking in grams rather than cups is measurably more accurate, because volume measures of flour vary by how firmly it is packed. A standard paperclip weighs about 1 gram, and a metric cup of flour is roughly 125 g.
Worked through with real numbers: 1 g is 0.001 kg, 5 g is 0.005 kg, 50 g is 0.05 kg.
As for the other side of the conversion: A litre of water weighs almost exactly 1 kg, which is not a coincidence โ the metric system was designed that way.
Strictly these are conversions of mass rather than weight โ mass is how much matter something contains, weight is the force gravity exerts on it. The distinction rarely matters on Earth, where the two are proportional, but it is why the same object masses the same on the Moon while weighing about a sixth as much.
How to use Grams to Kilograms
- Enter the number of grams you want to convert.
- The equivalent in kilograms appears instantly โ there is no button to press.
- Check the reference table for common Grams to Kilograms values.
Frequently asked questions
How do I convert grams to kilograms?
Multiply your grams figure by 0.001 to get kilograms โ or type a value above and read the answer straight off.
How many kilograms are in one gram?
1 g = 0.001 kg.
When would I need to convert grams to kilograms?
Used when accumulating gram measurements into a single figure โ totalling ingredient weights, or converting a nutrition figure into a shipping or bulk quantity.
What is a gram, exactly?
The gram was originally defined as the mass of one cubic centimetre of water at its freezing point. It is now simply one thousandth of a kilogram, the base unit having overtaken it. A standard paperclip weighs about 1 gram, and a metric cup of flour is roughly 125 g.
Where is the kilogram actually used?
It is the base SI unit of mass and the standard for body weight, groceries and freight almost everywhere outside the United States. A litre of water weighs almost exactly 1 kg, which is not a coincidence โ the metric system was designed that way.
Is there anything tricky about weight conversions?
Strictly these are conversions of mass rather than weight โ mass is how much matter something contains, weight is the force gravity exerts on it. The distinction rarely matters on Earth, where the two are proportional, but it is why the same object masses the same on the Moon while weighing about a sixth as much.
Is this converter accurate?
Yes. It uses the exact standard factor of 1 g = 0.001 kg, and the conversion runs in your browser so nothing is uploaded.