Convert Short Tons to Long Tons
1 short ton (ton (US)) equals 0.8928571429 long tons (ton (UK)).
1 ton (US) = 0.8928571429 ton (UK)
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk short ton to long ton converter to paste a column from Excel.
How to Convert Short Ton to Long Ton
- 1 ton (US) = 0.8928571429 ton (UK)
- 1 ton (UK) = 1.12 ton (US)
- Example: convert 15 ton (US) to ton (UK): 15 ton (US) = 15 × 0.8928571429 ton (UK) = 13.39285714 ton (UK)
Reference conditions. ton (US): Avoirdupois system: 1 lb = 16 oz = 7000 grains = 0.45359237 kg exactly (1959 agreement). ton (UK): Avoirdupois system: 1 lb = 16 oz = 7000 grains = 0.45359237 kg exactly (1959 agreement).
Formula
ton (UK) = ton (US) × 0.8928571428571
or ton (UK) = ton (US) ÷ 1.12
Derivation from SI units:
- 1 short ton = 2000 lb = 907.18474 kg (exact)
- 1 long ton = 2240 lb = 1016.0469088 kg (exact)
- 1 ton (US) = 907.18474 kg ÷ 1016.0469088 kg per ton (UK) = 0.8928571428571 ton (UK)
Both units are defined exactly, so the factor is exact. Short Ton definition: short ton; Long Ton definition: long ton.
Worked examples
- A reading of 3 ton (US) converts to 2.678571429 ton (UK).
3 ton (US) × 0.8928571429 = 2.678571429 ton (UK) - A value of 40 ton (US) is 35.71428571 ton (UK).
40 ton (US) × 0.8928571429 = 35.71428571 ton (UK)
Short Ton to Long Ton conversion table
| Short Tons (ton (US)) | Long Tons (ton (UK)) |
|---|---|
| 0.5 ton (US) | 0.4464285714 ton (UK) |
| 1 ton (US) | 0.8928571429 ton (UK) |
| 1.5 ton (US) | 1.339285714 ton (UK) |
| 2 ton (US) | 1.785714286 ton (UK) |
| 3 ton (US) | 2.678571429 ton (UK) |
| 5 ton (US) | 4.464285714 ton (UK) |
| 10 ton (US) | 8.928571429 ton (UK) |
| 20 ton (US) | 17.85714286 ton (UK) |
| 40 ton (US) | 35.71428571 ton (UK) |
| 50 ton (US) | 44.64285714 ton (UK) |
| 100 ton (US) | 89.28571429 ton (UK) |
| 1000 ton (US) | 892.8571429 ton (UK) |
Where it's used
Short Tons are used for US truck, trailer and vehicle ratings, while long tons appear in ship displacement and deadweight tonnage. Both measure mass (commonly called weight), so the conversion is a fixed factor.
Short Ton to other weight and mass units
| Conversion | 1 ton (US) equals |
|---|---|
| short ton to kilogram | 907.18474 kg |
| short ton to gram | 907184.74 g |
| short ton to milligram | 907184740 mg |
| short ton to microgram | 907184740000 µg |
| short ton to metric ton | 0.90718474 t |
| short ton to pound | 2000 lb |
| short ton to ounce | 32000 oz |
| short ton to stone | 142.8571429 st |
| short ton to long ton | 0.8928571429 ton (UK) |
| short ton to grain | 14000000 gr |
| short ton to troy ounce | 29166.66667 oz t |
| short ton to carat | 4535923.7 ct |
Frequently asked questions
How many long tons are in 1 short ton?
1 ton (US) = 0.8928571429 ton (UK).
How do I convert short tons to long tons?
Multiply the value in ton (US) by 0.8928571429, or divide it by 1.12. For example, 15 ton (US) × 0.8928571429 = 13.39285714 ton (UK).
Is the ton (US) to ton (UK) conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "ton, short (2000 lb)".
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "ton, long (2240 lb)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Short Tons to Long Tons. Retrieved October 17, 2026, from https://scientificconverters.com/mass/short-tons-to-long-tons/
IEEE
Scientific Converters, "Convert Short Tons to Long Tons," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/mass/short-tons-to-long-tons/