Kilograms to tonnes
Multiply kilograms by 0.001 to get tonnes.
5,000 kg = 5 t
How to convert kilograms to tonnes
The tonne is exactly 1000 kilograms — the metric ton. The kilogram is the SI base unit of mass, fixed since 2019 by defining the Planck constant as exactly 6.62607015×10⁻³⁴ J·s.
Worked example — 5,000 kg: 5,000 × 0.001 = 5 t.
Kilograms to tonnes table
| Kilograms | Tonnes |
|---|---|
| 100 kg | 0.1 t |
| 500 kg | 0.5 t |
| 1,000 kg | 1 t |
| 2,000 kg | 2 t |
| 5,000 kg | 5 t |
| 10,000 kg | 10 t |
| 20,000 kg | 20 t |
| 50,000 kg | 50 t |
| 100,000 kg | 100 t |
Reverse and related
About kilograms and tonnes
Kilogram (kg)
1 kg = 0.001 tDefinition. The SI base unit of mass, fixed since 2019 by defining the Planck constant as exactly 6.62607015×10⁻³⁴ J·s
History and origin
The kilogram began in 1795 as the mass of one litre of water at the melting point of ice, and from 1889 was embodied in a platinum-iridium cylinder kept near Paris, the International Prototype Kilogram. In 2019 the SI retired that physical artefact and redefined the unit through a fixed value of the Planck constant, leaving its size unchanged.
Current use
It is the base unit of mass almost everywhere on Earth. The main everyday exception is the United States, where people weigh in pounds even though US science, medicine and industry work in kilograms.
Source: BIPM, The International System of Units (SI), 9th ed. (2019)
Tonne (t)
1 t = 1,000 kgDefinition. Exactly 1000 kilograms — the metric ton
History and origin
The tonne, or metric ton, was defined as exactly 1000 kilograms as the metric system spread, giving a convenient unit for heavy loads. It is accepted for use with the SI.
Current use
Tonnes measure bulk and freight weight, vehicle mass and industrial quantities throughout the metric world.
Source: BIPM, The International System of Units (SI), 9th ed. (2019)
Where people use this
Kilograms: body weight outside the US, groceries and produce, checked-luggage limits. Tonnes: bulk and freight weight, vehicles. 1000 kg is exactly 1 tonne.
Every value is carried to full double precision; the display is rounded.
Both units are defined in BIPM, The International System of Units (SI), 9th ed. (2019).
Questions people ask
How many tonnes is 1000 kg?
1000 kg is exactly 1 tonne.
How many tonnes is 5000 kg?
5000 kg is 5 tonnes.
How many kg in a tonne?
One tonne is 1000 kilograms.