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