How do I convert tonnes to kilograms?

Multiply the number of metric tonnes by 1000. For example, 1 t equals 1000 kg, and 2.5 t equals 2500 kg.

How many kilograms are in one tonne?

There are exactly 1000 kilograms in one metric tonne (1 t = 1000 kg).

Is anything uploaded?

No — every conversion runs locally in your browser and nothing is sent to any server.

How do I convert kilograms back to tonnes?

Divide the kilograms by 1000. For example, 7500 kg ÷ 1000 = 7.5 t. Just type into the Kilograms field and the Tonnes value updates.

Is a metric tonne the same as a US or UK ton?

No. A metric tonne is exactly 1000 kg. A US (short) ton is about 907.18 kg and a UK (long) ton about 1016.05 kg. This tool converts metric tonnes only.

Is the conversion exact?

Yes. The metric tonne is defined as exactly 1000 kilograms, so the factor of 1000 is exact with no rounding.

What is the symbol for tonne?

The symbol is t. The metric tonne is also written as megagram (Mg), since 1 t equals one million grams.

Tonnes to Kilograms Converter

This free mass converter changes metric tonnes (t) into kilograms (kg) and back again. It is handy for shipping and freight weights, construction materials, and any figure quoted in tonnes that you need in kilograms.

How it works

The metric tonne is defined as exactly 1000 kilograms, so the conversion is a single exact factor:

kg = t × 1000
t  = kg ÷ 1000

Type a value in either field and the other updates instantly — multiplying by 1000 from tonnes to kilograms, and dividing by 1000 the other way. Note this is the metric tonne, which differs from the US short ton (~907.18 kg) and the UK long ton (~1016.05 kg).

Example

Convert 2.5 t: 2.5 × 1000 = 2500 kg. Going back, 2500 kg ÷ 1000 = 2.5 t.

Tonnes (t)	Kilograms (kg)
1 t	1000 kg
2.5 t	2500 kg
10 t	10000 kg
100 t	100000 kg

All calculations run entirely in your browser with no data sent to any server.