US Tons to Tonnes Converter
1 US ton = 0.90718474 tonnes
Distinct from the US short ton (2,000 lb) and the imperial long ton (2,240 lb).
1 US ton equals 0.907185 tonnes
How to convert US tons to tonnes
These units measure mass. Pounds and ounces mean avoirdupois unless the unit explicitly says troy; a fluid ounce measures volume and requires a density to relate it to mass.
t = ton × 0.90718474One US ton is 0.90718474 tonnes, so a single multiplication converts any value.
9.07185 t ≈ 10 × 0.90718474Distinct from the US short ton (2,000 lb) and the imperial long ton (2,240 lb).
US tons to tonnes conversion table
Common values in US tons, converted to tonnes.
| US tons (ton) | Tonnes (t) |
|---|---|
| 1 | 0.90718474 |
| 2 | 1.8143695 |
| 3 | 2.7215542 |
| 4 | 3.628739 |
| 5 | 4.5359237 |
| 10 | 9.0718474 |
| 20 | 18.143695 |
| 25 | 22.679619 |
| 50 | 45.359237 |
| 100 | 90.718474 |
| 250 | 226.79619 |
| 500 | 453.59237 |
| 1,000 | 907.18474 |
About these units
US tonton
The US short ton: exactly 2,000 pounds.
tonnet
The metric ton: exactly 1,000 kilograms.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.