Convert kilograms to tonnes
Enter a value in kilograms (kg) to get tonnes (t). One kilogram is 0.001 tonnes; one tonne is 1,000 kilograms.
How to use the Kilogram to tonne
- Type the number of kilograms.
- Click Convert.
- Read the result in tonnes, plus the same value in every other weight & mass unit.
kg to t formula
tonnes = kilograms × 0.001. To go the other way, kilograms = tonnes × 1,000 (see tonnes to kilograms).
Worked example
12 kg × 0.001 = 0.012 t.
Kilograms to tonnes conversion table
| Kilograms | Tonnes |
|---|---|
| 0.1 kg | 0.0001 t |
| 0.5 kg | 0.0005 t |
| 1 kg | 0.001 t |
| 2 kg | 0.002 t |
| 3 kg | 0.003 t |
| 5 kg | 0.005 t |
| 10 kg | 0.01 t |
| 20 kg | 0.02 t |
| 25 kg | 0.025 t |
| 50 kg | 0.05 t |
| 100 kg | 0.1 t |
| 250 kg | 0.25 t |
| 500 kg | 0.5 t |
| 1,000 kg | 1 t |
About the kilogram
The SI base unit of mass, defined since 2019 via the Planck constant.
About the tonne
1,000 kg, also called the metric ton. Freight, vehicles and CO₂ emissions are measured in tonnes.
Related conversions
tonnes to kilograms · kilograms to pounds · kilograms to stones · kilograms to US tons · any unit.
Frequently asked questions
How many tonnes in a kilogram?
0.001 tonnes.
How many kilograms in a tonne?
1,000 kilograms.
Is the factor exact?
The factor 0.001 is derived from the units' exact definitions; only the display is rounded.
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Last updated 2026-09-23.