Tonnes to Kilograms Converter
1 tonne (t) equals 1,000 kilograms (kg).
Quick answer
A metric tonne is exactly 1,000 kg (about 2,205 lb). Multiply tonnes by 1,000.
- 1 tonne = 1,000 kilograms
- 1 kilogram = 0.001 tonnes
- Formula: kg = t × 1,000
- Quick estimate: multiply by 1,000: 2.5 t = 2,500 kg.
1 tonne = 1,000 kilograms
How to convert tonnes to kilograms
kg = t × 1,000
To convert tonnes to kilograms, multiply the number of tonnes by 1,000.
Example: 42 t to kg
- Start with the value in tonnes: 42 t.
- Multiply by 1,000: 42 × 1,000 = 42,000.
- Result: 42 tonnes = 42,000 kilograms.
Going the other way, 1 kilogram = 0.001 tonnes, so to convert kilograms back to tonnes you divide by the same number. See kilograms to tonnes.
Where the conversion factor comes from
The kilogram is the SI base unit of mass, defined since 2019 by fixing the value of the Planck constant. Metric prefixes are exact: 1 kg = 1,000 g, 1 g = 1,000 mg, and a metric tonne is 1,000 kg. The tonne is not the same as the US short ton (907 kg) or the British long ton (1,016 kg).
Mental math: t to kg in your head
Move the decimal point three places right.
When you need to convert tonnes to kilograms
- Vehicle weights, cargo and freight.
- Industrial production and emissions (tonnes of CO₂).
Common mistakes
- Treating a US ton (2,000 lb) as a tonne: it is 9% lighter.
Everyday tonnes in kilograms
| Example | Tonnes | Kilograms |
|---|---|---|
| Small car | 1.2 t | 1,200 kg |
| Asian elephant | 4 t | 4,000 kg |
| Loaded truck (EU max) | 40 t | 40,000 kg |
Tonnes to kilograms conversion table
| Tonnes (t) | Kilograms (kg) |
|---|---|
| 0.1 t | 100 kg |
| 0.2 t | 200 kg |
| 0.3 t | 300 kg |
| 0.4 t | 400 kg |
| 0.5 t | 500 kg |
| 0.6 t | 600 kg |
| 0.7 t | 700 kg |
| 0.8 t | 800 kg |
| 0.9 t | 900 kg |
| 1 t | 1,000 kg |
| 1.5 t | 1,500 kg |
| 2 t | 2,000 kg |
| 2.5 t | 2,500 kg |
| 3 t | 3,000 kg |
| 3.5 t | 3,500 kg |
| 4 t | 4,000 kg |
| 4.5 t | 4,500 kg |
| 5 t | 5,000 kg |
| 6 t | 6,000 kg |
| 7 t | 7,000 kg |
| 7.5 t | 7,500 kg |
| 8 t | 8,000 kg |
| 9 t | 9,000 kg |
| 10 t | 10,000 kg |
| 11 t | 11,000 kg |
| 12 t | 12,000 kg |
| 13 t | 13,000 kg |
| 14 t | 14,000 kg |
| 15 t | 15,000 kg |
| 16 t | 16,000 kg |
| 17 t | 17,000 kg |
| 18 t | 18,000 kg |
| 19 t | 19,000 kg |
| 20 t | 20,000 kg |
| 21 t | 21,000 kg |
| 22 t | 22,000 kg |
| 23 t | 23,000 kg |
| 24 t | 24,000 kg |
| 25 t | 25,000 kg |
| 26 t | 26,000 kg |
More t to kg values
- 27 t
- 28 t
- 29 t
- 30 t
- 31 t
- 32 t
- 33 t
- 34 t
- 35 t
- 36 t
- 37 t
- 38 t
- 39 t
- 40 t
- 41 t
- 42 t
- 43 t
- 44 t
- 45 t
- 46 t
- 47 t
- 48 t
- 49 t
- 50 t
- 51 t
- 52 t
- 53 t
- 54 t
- 55 t
- 56 t
- 57 t
- 58 t
- 59 t
- 60 t
- 61 t
- 62 t
- 63 t
- 64 t
- 65 t
- 66 t
- 67 t
- 68 t
- 69 t
- 70 t
- 71 t
- 72 t
- 73 t
- 74 t
- 75 t
- 76 t
- 77 t
- 78 t
- 79 t
- 80 t
- 81 t
- 82 t
- 83 t
- 84 t
- 85 t
- 86 t
- 87 t
- 88 t
- 89 t
- 90 t
- 91 t
- 92 t
- 93 t
- 94 t
- 95 t
- 96 t
- 97 t
- 98 t
- 99 t
- 100 t
- 110 t
- 120 t
- 130 t
- 140 t
- 150 t
- 160 t
- 170 t
- 180 t
- 190 t
- 200 t
- 210 t
- 220 t
- 230 t
- 240 t
- 250 t
- 260 t
- 270 t
- 280 t
- 290 t
- 300 t
- 310 t
- 320 t
- 330 t
- 340 t
- 350 t
- 360 t
- 370 t
- 380 t
- 390 t
- 400 t
- 410 t
- 420 t
- 430 t
- 440 t
- 450 t
- 460 t
- 470 t
- 480 t
- 490 t
- 500 t
- 600 t
- 700 t
- 800 t
- 900 t
- 1,000 t
- 1,200 t
- 1,500 t
- 2,000 t
- 2,500 t
- 3,000 t
- 4,000 t
- 5,000 t
- 10,000 t
What is a tonne?
The tonne, or metric ton, is a unit of mass equal to 1,000 kilograms, about 2,204.6 pounds.
What is a kilogram?
The kilogram is the base unit of mass in the International System of Units (SI) and the unit used for body weight, food and goods in almost every country.
Convert tonnes to other units
Convert other units to kilograms
Frequently asked questions
How many kilograms are in a tonne?
One tonne is 1,000 kilograms.
How many tonnes are in a kilogram?
One kilogram is 0.001 tonnes.
What is the formula to convert tonnes to kilograms?
kg = t × 1,000.
Is a tonne the same as a ton?
No: a metric tonne is 1,000 kg; a US (short) ton is 907.2 kg; a UK (long) ton is 1,016 kg.