tonne
Sign in to saveThe tonne ( or ; symbol: t) is a unit of mass equal to 1,000 kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton in the United States to distinguish it from the non-metric units of the short ton and the long ton. One tonne is equivalent to approximately 2,204.6 pounds, 1.102 short tons, and 0.984 long tons. The exact corresponding SI unit is the megagram (symbol Mg), a less common way to express the same mass.
AI overview
A tonne is a unit of mass equal to 1,000 kilograms, widely used around the world as a practical way to measure large quantities of materials and goods. It matters because it's an internationally recognized standard that makes it easier to compare weights across different countries, though the United States sometimes calls it a "metric ton" to distinguish it from its own non-metric ton measurements.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Unit.image
- File:A 1-tonne weight (geograph 6511341).jpg
- Unit.name
- tonne
- Unit.caption
- A one-tonne (1000-kilogram) concrete block
- Unit.standard
- Non-SI
- Unit.quantity
- mass
- Unit.symbol
- t Mg
- Unit.extralabel
- In SI units:
via Wikipedia infobox
Article
12 sectionsContents
- Symbol and abbreviations
- Origin and spelling
- French pre-metric tonne
- Conversions
- Derived units
- Alternative usages
- Metric ton units <!--[[MOS:NOBACKREF]] notwithstanding-->
- Use of mass as proxy for energy <!-- This section is linked from [[Impact event]] -->
- Unit of force
- See also
- Notes and references
- External links
The tonne ( or ; symbol: t) is a unit of mass equal to 1,000 kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton in the United States to distinguish it from the non-metric units of the short ton and the long ton. One tonne is equivalent to approximately 2,204.6 pounds, 1.102 short tons, and 0.984 long tons. The exact corresponding SI unit is the megagram (symbol Mg), a less common way to express the same mass.
== Symbol and abbreviations == The BIPM symbol for the tonne is t, adopted at the same time as the unit in 1879. Its use is also official for the metric ton in the United States, having been adopted by the United States National Institute of Standards and Technology (NIST). It is a symbol, not an abbreviation, and should not be followed by a period. Use of lower case is significant, and use of other letter combinations can lead to ambiguity. For example, T, MT, mT, are the SI symbols for the tesla, megatesla, and millitesla, respectively, while Mt and mt are SI-compatible symbols for the megatonne (one teragram) and millitonne (one kilogram). If describing TNT equivalent units of energy, one megatonne of TNT is equivalent to approximately 4.184 petajoules.