1,000 grams to kilograms
1.0000 kg
1,000 g = 1.0000 kg.
kilograms
1.0000kg
1,000 g = 1.0000 kg
In short
How many kilograms is 1,000 grams?
1,000 g = 1.0000 kg. 1 gram = 0.001000 kilograms, so the working is 1,000 × 0.001000 = 1.0000.
The working
The factor below is an exact definition rather than a measurement, so nothing is approximated in the arithmetic. The only rounding on this page happens where a number is displayed.
1 gram = 0.001000 kilograms 1,000 × 0.001000 = 1.0000
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (kg) | Off by |
|---|---|---|
| Whole number | 1 | exact |
| 1 decimal | 1.0 | exact |
| 2 decimals | 1.00 | exact |
Round trip: take 1.0000 kg back the other way and you land on 1,000.0000 g — a drift of 0.0000 g. That gap is the rounding, not the conversion.
What 1,000 g looks like
1,000 g
A thousand grams is one kilogram — the only SI base unit whose name has a prefix.
Frequently asked questions
What is 1,000 grams in kilograms?
1,000 grams is 1.0000 kilograms. 1 gram = 0.001000 kilograms, so the working is 1,000 × 0.001000 = 1.0000.
How accurate is 1.0000 kg?
Rounding to 1.0000 kg and converting straight back gives 1,000.0000 g, a drift of 0.0000 g from the 1,000 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
Grams to Kilograms Converter
Convert g to kg — and the one SI base unit that already has a prefix.
Open the grams to kilograms converter →