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Short Tons to Metric Tonnes Calculator

Convert US short tons to metric tonnes for international quotes and haulage limits.

Computed in your browser — nothing you enter is uploaded. Figures are presented for United States against IRC 2024, and every formula is cited under regulatory standards below.

Last verified 2026-08-26 · v1.0.0

Market
Imperial · sales tax

Weight

10 tons

High confidence

1 short ton = 2,000 lb = 907.18474 kg = 0.90718474 tonnes. Three different tons are in circulation and they span about 12% — never accept an unqualified 'ton' on a cross-border quote.

Conversion factor applied
1 tons per short tons

Bulk material quotes and haulage limits both use the word ton for units that differ by up to twelve percent, which makes this one of the more consequential conversions on the site. A short ton is two thousand pounds, a metric tonne is a thousand kilograms at about 2,205 pounds, and the imperial long ton is 2,240 pounds. American aggregate is priced in the first, European and Australian in the second, and older British documentation in the third. On a cross-border order the difference is roughly a tenth of the material, and on a vehicle weight limit it is the difference between legal and overloaded, so an unqualified figure is worth querying rather than converting.

Estimated cost — your price

This site holds no price list for this material — local prices vary too much to publish honestly. Enter your supplier's price and the result is costed with it.

Preliminary estimate, not certified engineering. This tool produces an indicative quantity calculation for planning purposes only — it is not a certified structural analysis, a guaranteed material takeoff, or a substitute for building department approval. Always verify measurements on-site and have a licensed contractor or structural engineer review any load-bearing, code-sensitive, or safety-critical work before purchasing materials or starting construction. Spotted an arithmetic or standards error? Report it to contact@craftquantities.com with your inputs — confirmed fixes become pinned regression tests.

[Schema Verified] Computed in alignment with American Concrete Institute (ACI 318-19) formulas and International Residential Code (IRC 2024) spatial boundaries.

Regulatory standards & verification citations

  • 1 short ton = 2,000 lb; 1 lb = 0.45359237 kg; so 1 short ton = 0.90718474 metric tonnes
  • 1 imperial long ton = 2,240 lb = 1.016047 metric tonnes

Your workspace

Most jobs need more than one number. Add the calculators you need next and they open right here, underneath this one — your figures stay on screen and nothing is lost to a page change.

Frequently asked questions

How many tons are there?
Three in common use. The short ton is 2,000 lb and standard in the US. The metric tonne is 1,000 kg, about 2,205 lb. The imperial long ton is 2,240 lb and still appears in older British material. They span about twelve percent between them.
Which does an aggregate quote mean?
In the US, almost always short tons. In the UK, Europe and Australia, metric tonnes. Cross-border quotes should say explicitly, and where they do not it is worth asking rather than assuming — the difference is roughly a tenth of the order.
Do haulage weight limits use the same ton?
They follow local convention, so a US gross vehicle weight rating is in pounds or short tons while a European one is in tonnes. Converting a payload figure without checking which ton the limit uses can put a vehicle over its legal weight.