How do I convert kg to metric tons?
Type a value in either box, and the answer shows it in the other unit as you type.
- Metric tons (t)
- 0.001
1 kg = 0.001 t.
Metric tons (t): 0.001. 1 kg = 0.001 t.
Metric tons (t) by kilograms (kg)
How to calculate
Converts kilograms (kg) to metric tons (t) and back, with the exact unit definitions.
Example with the default inputs (Kilograms (kg) 1): 1 kg = 0.001 t.
Formula: t = kg × 0.001
- 1 kilogram = 0.001 metric tons, from the exact definitions in NIST SP 811.
- Exact on the typed decimals: at most 6 decimal places (6 significant digits below 0.0001), rounded half up.
Worked examples
Each example is checked against the calculator on every build.
- Kilograms (kg) 1 gives Metric tons (t) 0.001.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Kilograms (kg) 2,500 gives Metric tons (t) 2.5.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Metric tons (t) 2.5 gives Kilograms (kg) 2,500.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
Other questions people ask
How many metric tons are in a kilogram?
1 kilogram is 0.001 metric tons, from the exact unit definitions (NIST SP 811).
How do I convert kg to tonnes?
Multiply by 0.001: t = kg × 0.001. For example, 1 kg × 0.001 = 0.001 t.
How do I convert tonnes back to kg?
Multiply by 1,000, or type the metric tons into the second box and the converter works it out. 1 metric ton is 1,000 kilograms.
Is a tonne the same as a metric ton?
Yes. A tonne (t) is the metric ton, exactly 1,000 kg (NIST SP 811). The US short ton is 2,000 lb (907.18474 kg), and the UK long ton is 2,240 lb (1,016.0469088 kg).
Which ton does this page use?
The metric ton (tonne), 1,000 kg. The kg to tons converter uses the US short ton by default and also offers the metric and long tons.
How many tonnes is 2,500 kg?
2,500 ÷ 1,000 = 2.5 tonnes (metric tons).