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Convert tonnes to kilograms
Instant, accurate t → kg conversion with a live converter, table and formula.
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1 tonne = 1000 kilograms
1 kilogram = 0.001 tonnes
tonnes to kilograms table
| tonnes (t) | kilograms (kg) |
|---|---|
| 0.5 | 500 |
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 20 | 20000 |
| 50 | 50000 |
| 100 | 100000 |
| 500 | 500000 |
| 1000 | 1000000 |
Formula
kilograms = tonnes × 1000.
Example
10 tonnes = 10000 kilograms.
What is a tonne?
A tonne (t) is 1,000 kilograms — the metric ton.
What is a kilogram?
The kilogram (kg) is the SI base unit of mass; one liter of water weighs about 1 kg.
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 | tonnes | kilograms |
|---|---|---|
| Smartphone | 0.00018 t | 0.18 kg |
| Liter of water | 0.001 t | 1 kg |
| Newborn baby (average) | 0.0033 t | 3.3 kg |
| Airline checked-bag limit (common) | 0.023 t | 23 kg |
| Cement bag (standard) | 0.05 t | 50 kg |
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 kilograms in a tonnes?+
1 tonne = 1000 kilograms.
How do I convert tonnes to kilograms?+
Enter the value in the tonnes box above and the kilograms value appears instantly. You can also type in the kilograms box to convert the other way.
Is this t to kg converter free?+
Yes — it is 100% free, needs no sign-up, and runs entirely in your browser.