KG to Grams Converter
Convert kilograms to grams — a thousand to the kilogram. Results update as you type; exact factors shown.
One kilogram is 1,000 grams — see the exact factor, not a rounded rule of thumb.
How the kg to grams converter works
Mass converts through the kilogram. The avoirdupois pound has been exactly 0.45359237 kg since 1959, so an ounce is 28.349523125 g and a stone (14 lb) is 6.35029318 kg. A US short ton is 2,000 lb; an imperial long ton is 2,240 lb; a metric tonne is 1,000 kg.
The UK is metric for most trade and science but keeps miles, pints, stone and mpg (with the imperial gallon) in daily life.
Common mass conversions
| From | To | Units |
|---|---|---|
| 0.001 kg | 1 g | kilograms to grams |
| 0.01 kg | 10 g | kilograms to grams |
| 0.1 kg | 100 g | kilograms to grams |
| 0.25 kg | 250 g | kilograms to grams |
| 0.5 kg | 500 g | kilograms to grams |
| 0.75 kg | 750 g | kilograms to grams |
| 1 kg | 1,000 g | kilogram to grams |
| 1.5 kg | 1,500 g | kilograms to grams |
| 2 kg | 2,000 g | kilograms to grams |
| 5 kg | 5,000 g | kilograms to grams |
| 10 kg | 10,000 g | kilograms to grams |
| 25 kg | 25,000 g | kilograms to grams |
Units in this converter and their exact factors
| Unit | Symbol | One unit in kilograms |
|---|---|---|
| milligram | mg | 0.000001 kilogram |
| gram | g | 0.001 kilogram |
| kilogram | kg | 1 kilogram |
| tonne (metric ton) | t | 1,000 kilogram |
| ounce | oz | 0.0283495231 kilogram |
| pound | lb | 0.45359237 kilogram |
| stone | st | 6.35029318 kilogram |
| US ton (short) | US ton | 907.18474 kilogram |
| imperial ton (long) | long ton | 1,016.0469088 kilogram |
FAQFrequently asked questions about mass conversion
How many grams in a kilogram?
Exactly a thousand.
What is 0.75 kg in grams?
750 g.
How do I convert quickly?
Move the decimal point three places right.
Which do recipes use?
Grams for most ingredients; kilograms only for large quantities like flour sacks or meat joints.
How heavy is a gram?
About the weight of a paperclip, or a millilitre of water.
Where these figures come from
- BIPM — The International System of Units (SI Brochure, 9th edition) — definitions of the base and derived units.
- NIST Special Publication 811 — Guide for the Use of the International System of Units — the exact conversion factors used here.
- National Physical Laboratory (NPL) — United Kingdom's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.