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Convert kilograms to grams
Instant, accurate kg → g conversion with a live converter, table and formula.
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1 kilogram = 1000 grams
1 gram = 0.001 kilograms
kilograms to grams table
| kilograms (kg) | grams (g) |
|---|---|
| 0.5 | 500 |
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 20 | 20000 |
| 50 | 50000 |
| 100 | 100000 |
| 500 | 500000 |
| 1000 | 1000000 |
Formula
grams = kilograms × 1000.
Example
10 kilograms = 10000 grams.
What is a kilogram?
The kilogram (kg) is the SI base unit of mass; one liter of water weighs about 1 kg.
What is a gram?
A gram (g) is one-thousandth of a kilogram; a paperclip weighs about 1 g.
Real-world reference points
A kilogram is a liter of water; a pound is a loaf of bread; an ounce is a slice of it.
| Reference | kilograms | grams |
|---|---|---|
| Smartphone | 0.18 kg | 180 g |
| Liter of water | 1 kg | 1,000 g |
| Newborn baby (average) | 3.3 kg | 3,300 g |
| Airline checked-bag limit (common) | 23 kg | 23,000 g |
| Cement bag (standard) | 50 kg | 50,000 g |
Mistakes to avoid with mass conversions
- Confusing weight ounces with fluid ounces — one measures mass, the other volume.
- Reading 'stone and pounds' (11 st 6 lb) as decimal stone (11.6 st) — they differ.
- Comparing net vs gross weight when shipping: the box and padding count toward limits.
Frequently asked questions
How many grams in a kilograms?+
1 kilogram = 1000 grams.
How do I convert kilograms to grams?+
Enter the value in the kilograms box above and the grams value appears instantly. You can also type in the grams box to convert the other way.
Is this kg to g converter free?+
Yes — it is 100% free, needs no sign-up, and runs entirely in your browser.