ConvBolt — Unit ConverterUS tons to Tonnes Converter
Converting US tons to tonnes is a multiplication by a fixed factor: 1 ton = 0.9071847 t. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.
Because one us ton works out to 0.9071847 t, the tonne is the smaller unit of the two: a figure given in tonne always carries a smaller number than the same measurement in us ton. A chart drawn in ton can hide that, so check which label the axis uses before you compare two readings.
Cooking and shipping are the two places this pair appears most: a kitchen scale reads in US tons while a recipe or label is written in tonnes, and a courier tariff built on tonnes still has to be checked against a scale showing US tons.
The conversion factor used here is 0.9071847 t per us ton (7 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 ton a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 1.102311 ton per t, the exact reciprocal, so a round trip through both pages returns your original number.
US tons to Tonnes formula
Use this formula to convert any us ton value to tonnes:
Worked example: 100 ton × 0.9071847 = 90.71847 t.
US tons to Tonnes conversion table
| US tons (ton) | Tonnes (t) |
|---|---|
| 0.5 ton | 0.4535924 t |
| 1 ton | 0.9071847 t |
| 2 ton | 1.814369 t |
| 5 ton | 4.535924 t |
| 10 ton | 9.071847 t |
| 20 ton | 18.14369 t |
| 50 ton | 45.35924 t |
| 100 ton | 90.71847 t |
| 500 ton | 453.5924 t |
| 1000 ton | 907.1847 t |
How to convert US tons to tonnes
Multiply the us ton value by 0.9071847 to get the equivalent in tonnes. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.
If you need the opposite direction, use the Tonnes to US tons converter instead of dividing by hand; both pages use the same source factors. For every other ton conversion in one place, see the ton conversion hub.
Frequently asked questions
How many tonnes are in 1 us ton?
1 us ton = 0.9071847 t.
What is 100 US tons in tonnes?
100 ton = 90.71847 t.
Is converting US tons to tonnes the same as tonnes to US tons?
No — the direction changes the multiplier. The reverse conversion (1 t = 1.102311 ton) is on the Tonnes to US tons page.
Related conversions
Try the ConvBolt Unit Converter for any other weight unit, browse the Weight conversions, or read our conversion guides.