Grams to Kg Converter
Convert grams, kilograms and milligrams instantly. Enter a value, pick your units and see the result live.
How the conversion works
Grams to kilograms conversion chart
All conversions use the exact metric relationship: 1 kg = 1000 g and 1 g = 1000 mg. Use the calculator above for any value not listed here.
| Grams (g) | Kilograms (kg) | Milligrams (mg) |
|---|---|---|
| 1 g | 0.001 kg | 1,000 mg |
| 10 g | 0.01 kg | 10,000 mg |
| 50 g | 0.05 kg | 50,000 mg |
| 100 g | 0.1 kg | 100,000 mg |
| 250 g | 0.25 kg | 250,000 mg |
| 500 g | 0.5 kg | 500,000 mg |
| 750 g | 0.75 kg | 750,000 mg |
| 1,000 g | 1 kg | 1,000,000 mg |
| 1,500 g | 1.5 kg | 1,500,000 mg |
| 2,000 g | 2 kg | 2,000,000 mg |
| 5,000 g | 5 kg | 5,000,000 mg |
Frequently asked questions
How many grams in a kg?
There are exactly 1,000 grams in 1 kilogram. The kilogram is the SI base unit of mass, and "kilo" means one thousand. So to convert grams to kilograms you divide by 1,000, and to convert kilograms to grams you multiply by 1,000.
How do you convert grams to kilograms?
Divide the number of grams by 1,000. For example, 500 g ÷ 1,000 = 0.5 kg, and 2,500 g ÷ 1,000 = 2.5 kg. You can also just move the decimal point three places to the left.
How many milligrams are in a gram?
There are 1,000 milligrams (mg) in 1 gram (g). To convert grams to milligrams, multiply by 1,000. To convert milligrams to grams, divide by 1,000. This is useful for medicine doses and small quantities.
How many milligrams are in a kilogram?
There are 1,000,000 (one million) milligrams in 1 kilogram, because 1 kg = 1,000 g and each gram = 1,000 mg. So 1 kg = 1,000 × 1,000 = 1,000,000 mg.
Is 500 grams half a kilogram?
Yes. Since 1 kg = 1,000 g, exactly 500 g equals 0.5 kg, which is half a kilogram. Likewise 250 g is a quarter kilo and 750 g is three-quarters of a kilo.