Kilograms to Grams Converter (kg to grams)
Enter a value in kilograms to see it in grams instantly, or type in the grams box to convert the other way. 1 kilogram = 1,000 grams, and 1 gram = 0.001 kilograms.
Kilo means thousand, so multiply kilograms by 1,000. 0.5 kg is 500 g, 1.25 kg is 1,250 g and 2 kg is 2,000 g. To go from grams to kilograms, move the decimal point three places left.
1 kilogram = 1,000 grams. Formula: g = kg × 1,000 (or kg ÷ 0.001)
1 kilogram in all weight units
| Milligrams (mg) | 1,000,000 |
| Grams (g) | 1,000 |
| Metric tons (t) | 0.001 |
| Ounces (oz) | 35.273962 |
| Pounds (lb) | 2.2046226 |
| Stones (st) | 0.15747304 |
| US tons (US ton) | 0.0011023113 |
| UK tons (UK ton) | 0.0009842065 |
| Newtons (N) | 9.80665 |
How to convert kilograms to grams
g = kg × 1,000
Multiply the number of kilograms by 1,000. To convert grams back to kilograms, multiply by 0.001, or divide by 1,000.
Example: 5 kilograms × 1,000 = 5,000 grams.
Kilograms to Grams conversion table
| Kilograms | Grams |
|---|---|
| 1 kg | 1,000 g |
| 2 kg | 2,000 g |
| 3 kg | 3,000 g |
| 4 kg | 4,000 g |
| 5 kg | 5,000 g |
| 6 kg | 6,000 g |
| 7 kg | 7,000 g |
| 8 kg | 8,000 g |
| 9 kg | 9,000 g |
| 10 kg | 10,000 g |
| 12 kg | 12,000 g |
| 15 kg | 15,000 g |
| 20 kg | 20,000 g |
| 25 kg | 25,000 g |
| 30 kg | 30,000 g |
| 40 kg | 40,000 g |
| 50 kg | 50,000 g |
| 60 kg | 60,000 g |
| 70 kg | 70,000 g |
| 75 kg | 75,000 g |
| 80 kg | 80,000 g |
| 90 kg | 90,000 g |
| 100 kg | 100,000 g |
| 200 kg | 200,000 g |
| 250 kg | 250,000 g |
| 500 kg | 500,000 g |
| 1,000 kg | 1,000,000 g |
| Grams | Kilograms |
|---|---|
| 1 g | 0.001 kg |
| 2 g | 0.002 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 |
| 20 g | 0.02 kg |
| 25 g | 0.025 kg |
| 30 g | 0.03 kg |
| 40 g | 0.04 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 |
| 200 g | 0.2 kg |
| 250 g | 0.25 kg |
| 500 g | 0.5 kg |
| 1,000 g | 1 kg |
About the kilogram and the gram
The kilogram is the SI base unit of mass, defined since 2019 in terms of the Planck constant. Body weight, groceries and luggage use kilograms in most of the world.
The gram is one thousandth of a kilogram. Food labels, recipes, jewellery and postage use grams.
Frequently asked questions
How many grams are in a kilogram?
There are 1,000 grams in 1 kilogram. For any number of kilograms, multiply by 1,000.
How many kilograms are in a gram?
1 gram = 0.001 kilograms. To convert grams to kilograms, multiply by 0.001 or divide by 1,000.
What is 5 kilograms in grams?
5 kilograms = 5,000 grams (5 × 1,000).
Is the kg to grams conversion exact?
Yes. The 1959 international agreement defined the avoirdupois pound as exactly 0.45359237 kg, so the ounce, stone and ton factors are exact too. Newtons use standard gravity, 9.80665 m/s², which is also an exact defined value. Results are rounded to eight significant digits for display.
Related calculators
Last updated . Formulas are shown on the page and checked against the worked example.
Conversion factors are exact international definitions where one exists and standard reference values elsewhere. Results are rounded to 8 significant digits.