Grams to Kilograms Converter
Convert grams to kilograms (g to kg) or kilograms to grams (kg to g) instantly. Type a value in either box: the other updates live, with the exact formula and step-by-step working shown below.
Formulas: kilograms = grams ÷ 1000 | grams = kilograms × 1000. The kilogram is the SI base unit of mass; 1 gram is exactly one thousandth of a kilogram.
Quick conversion table: grams to kilograms
Use the converter above to convert grams to kg instantly, or look up any gram to kilogram value in the tables below. Common gram values converted to kilograms (divide grams by 1000). Bookmark this page as your g to kg chart.
| Grams | Kilograms |
|---|---|
| 1 g | 0.001 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 |
| 200 g | 0.2 kg |
| 250 g | 0.25 kg |
| 300 g | 0.3 kg |
| 400 g | 0.4 kg |
| 500 g | 0.5 kg |
| 600 g | 0.6 kg |
| 750 g | 0.75 kg |
| 800 g | 0.8 kg |
| 1000 g | 1 kg |
| 1500 g | 1.5 kg |
| 2000 g | 2 kg |
| 2500 g | 2.5 kg |
| 3000 g | 3 kg |
| 4000 g | 4 kg |
| 5000 g | 5 kg |
| 7500 g | 7.5 kg |
| 10000 g | 10 kg |
20 popular conversions
The most searched grams to kilograms and kilograms to grams conversions, with exact answers.
| Grams | Kilograms |
|---|---|
| 10 g | 0.01 kg |
| 25 g | 0.025 kg |
| 50 g | 0.05 kg |
| 100 g | 0.1 kg |
| 200 g | 0.2 kg |
| 250 g | 0.25 kg |
| 500 g | 0.5 kg |
| 750 g | 0.75 kg |
| 1000 g | 1 kg |
| 1500 g | 1.5 kg |
| 2000 g | 2 kg |
| 2500 g | 2.5 kg |
| 5000 g | 5 kg |
| 10000 g | 10 kg |
| Kilograms | Grams |
|---|---|
| 0.25 kg | 250 g |
| 0.5 kg | 500 g |
| 1 kg | 1000 g |
| 1.5 kg | 1500 g |
| 2 kg | 2000 g |
| 2.5 kg | 2500 g |
So: how many kg is 100 grams? 0.1 kg. How many kg is 500 grams? 0.5 kg. How many grams is 2.5 kg? 2500 g.
Where you actually use grams and kilograms
Kitchen and recipes
Recipes list small amounts in grams and bulk amounts in kilograms. A recipe calling for 250 g of flour is the same as 0.25 kg; 500 g of sugar is 0.5 kg. Kitchen scales usually weigh in grams up to a few kilograms, so converting helps you compare a 1 kg bag of flour against a recipe needing 750 g (0.75 kg, three quarters of the bag).
Shipping and parcels
Couriers price parcels per kilogram. A 750 g package is 0.75 kg; a 2.5 kg parcel is 2500 g. If your scale reads 1250 g, that is 1.25 kg, which may push you into the next postage band. Always divide grams by 1000 before comparing shipping rates.
Lab and science
Lab balances measure in grams or milligrams, but protocols often state masses in kilograms for bulk reagents. A protocol needing 0.025 kg of reagent means 25 g. Conversely, 1500 g of solvent is 1.5 kg for inventory records.
Gym and body weight
Weight plates are marked in kilograms, while supplements and food portions are usually in grams. A 2.5 kg plate equals 2500 g; a 20 kg barbell is 20000 g. A 50 g scoop of protein powder is 0.05 kg, useful when tracking daily intake against kilogram-based goals.
Frequently asked questions
What is the formula to convert grams to kilograms?
Divide grams by 1000. The formula is kilograms = grams ÷ 1000. For example, 2000 g ÷ 1000 = 2 kg.
How many grams are in a kilogram?
Exactly 1000 grams are in one kilogram. This is an exact SI definition, not a measured approximation.
How do I convert kilograms to grams?
Multiply kilograms by 1000. The formula is grams = kilograms × 1000. For example, 2.5 kg × 1000 = 2500 g.
How many kilograms is 100 grams?
100 grams is 0.1 kilograms. Calculation: 100 ÷ 1000 = 0.1 kg.
How many kilograms is 500 grams?
500 grams is 0.5 kilograms. Calculation: 500 ÷ 1000 = 0.5 kg.
How many kilograms is 1000 grams?
1000 grams is exactly 1 kilogram. Calculation: 1000 ÷ 1000 = 1 kg.
How many grams is 0.5 kg?
0.5 kilograms is 500 grams. Calculation: 0.5 × 1000 = 500 g.
Is 1 gram equal to 0.001 kilograms?
Yes. 1 gram equals 0.001 kilograms, because 1 ÷ 1000 = 0.001 kg. One gram is one thousandth of a kilogram.
How many kilograms is 2500 grams?
2500 grams is 2.5 kilograms. Calculation: 2500 ÷ 1000 = 2.5 kg.
Can I convert grams to kilograms in my head?
Yes. Move the decimal point three places to the left. For example, 5000 g becomes 5 kg, 250 g becomes 0.25 kg, and 75 g becomes 0.075 kg.
Why do kitchen scales show grams instead of kilograms?
Grams give whole numbers for small amounts, which are easier to read. A recipe needing 250 g is clearer on a scale display than 0.25 kg, even though both are the same mass.
How do I convert grams to kilograms for shipping?
Divide the gram weight by 1000 and compare it with the courier's kilogram price bands. For example, a 1250 g parcel is 1.25 kg, and a 750 g parcel is 0.75 kg.
What is the difference between a gram and a kilogram?
The kilogram is the SI base unit of mass; the gram is a smaller unit equal to one thousandth of a kilogram. Use grams for small masses like food and medicine, and kilograms for larger masses like body weight and parcels.
Is this grams to kilograms converter accurate?
Yes. The conversion uses the exact SI definition of 1 kilogram = 1000 grams, so grams ÷ 1000 and kilograms × 1000 involve no approximation. Only the displayed decimals are rounded, and you can adjust the precision above.
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