Convert Grams to Kilograms
g to kg · weight & mass conversion
What are grams and kilograms?
A gram is one-thousandth of a kilogram, about the mass of a small paperclip. The kilogram is the SI base unit of mass, defined since 2019 by the Planck constant. For scale: a 70 kg adult weighs about 154 lb, and a bag of sugar is usually 1 kg (2.2 lb).
How to convert grams to kilograms
1 g = 0.001 kg. To convert, multiply the number of grams by 0.001. For example, 5 g = 0.005 kg, and 20 g = 0.02 kg. To go the other way, multiply kilograms by 1,000 (since 1 kg = 1,000 g).
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 |
FAQ
What is 1 g in kg?
1 g = 0.001 kg. To convert any amount, multiply the number of grams by 0.001.
How do I convert kilograms back to grams?
Go the other way: 1 kg = 1,000 g, so multiply kilograms by 1,000 to get grams.
Is a gram bigger than a kilogram?
No — 1 g is the smaller unit, equal to 0.001 kg (it takes 1,000 g to make one kg).
Are these weight & mass conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.