Convert Ounces to Long Tons
1 ounce (oz) equals 0.00002790178571 long tons (ton (UK)).
1 oz = 0.00002790178571 ton (UK)
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk ounce to long ton converter to paste a column from Excel.
How to Convert Ounce to Long Ton
- 1 oz = 0.00002790178571 ton (UK)
- 1 ton (UK) = 35840 oz
- Example: convert 15 oz to ton (UK): 15 oz = 15 × 0.00002790178571 ton (UK) = 0.0004185267857 ton (UK)
Reference conditions. oz: 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) = oz ÷ 35840
Derivation from SI units:
- 1 oz = 1/16 lb = 28.349523125 g (exact)
- 1 long ton = 2240 lb = 1016.0469088 kg (exact)
- 1 oz = 0.028349523125 kg ÷ 1016.0469088 kg per ton (UK) = 0.00002790178571429 ton (UK)
Both units are defined exactly, so the factor is exact. Ounce definition: ounce; Long Ton definition: long ton.
Worked examples
- A reading of 4 oz converts to 0.0001116071429 ton (UK).
4 oz × 0.00002790178571 = 0.0001116071429 ton (UK) - A value of 12 oz is 0.0003348214286 ton (UK).
12 oz × 0.00002790178571 = 0.0003348214286 ton (UK)
Ounce to Long Ton conversion table
| Ounces (oz) | Long Tons (ton (UK)) |
|---|---|
| 0.25 oz | 0.000006975446429 ton (UK) |
| 0.5 oz | 0.00001395089286 ton (UK) |
| 1 oz | 0.00002790178571 ton (UK) |
| 2 oz | 0.00005580357143 ton (UK) |
| 3 oz | 0.00008370535714 ton (UK) |
| 4 oz | 0.0001116071429 ton (UK) |
| 5 oz | 0.0001395089286 ton (UK) |
| 6 oz | 0.0001674107143 ton (UK) |
| 8 oz | 0.0002232142857 ton (UK) |
| 10 oz | 0.0002790178571 ton (UK) |
| 12 oz | 0.0003348214286 ton (UK) |
| 16 oz | 0.0004464285714 ton (UK) |
| 20 oz | 0.0005580357143 ton (UK) |
| 24 oz | 0.0006696428571 ton (UK) |
| 32 oz | 0.0008928571429 ton (UK) |
| 64 oz | 0.001785714286 ton (UK) |
Where it's used
Ounces are used for food and parcel weights in the US, while long tons appear in ship displacement and deadweight tonnage. Both measure mass (commonly called weight), so the conversion is a fixed factor.
Ounce to other weight and mass units
| Conversion | 1 oz equals |
|---|---|
| ounce to kilogram | 0.02834952313 kg |
| ounce to gram | 28.34952313 g |
| ounce to milligram | 28349.52313 mg |
| ounce to microgram | 28349523.13 µg |
| ounce to metric ton | 0.00002834952313 t |
| ounce to pound | 0.0625 lb |
| ounce to stone | 0.004464285714 st |
| ounce to short ton | 0.00003125 ton (US) |
| ounce to long ton | 0.00002790178571 ton (UK) |
| ounce to grain | 437.5 gr |
| ounce to troy ounce | 0.9114583333 oz t |
| ounce to carat | 141.7476156 ct |
Frequently asked questions
How many long tons are in 1 ounce?
1 oz = 0.00002790178571 ton (UK).
How do I convert ounces to long tons?
Multiply the value in oz by 0.00002790178571, or divide it by 35840. For example, 15 oz × 0.00002790178571 = 0.0004185267857 ton (UK).
Is the oz 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, "ounce (avoirdupois) (oz)".
- 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 Ounces to Long Tons. Retrieved October 17, 2026, from https://scientificconverters.com/mass/ounces-to-long-tons/
IEEE
Scientific Converters, "Convert Ounces to Long Tons," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/mass/ounces-to-long-tons/