Convert Troy Ounces to Long Tons
1 troy ounce (oz t) equals 0.0000306122449 long tons (ton (UK)).
1 oz t = 0.0000306122449 ton (UK)
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk troy ounce to long ton converter to paste a column from Excel.
How to Convert Troy Ounce to Long Ton
- 1 oz t = 0.0000306122449 ton (UK)
- 1 ton (UK) = 32666.66667 oz t
- Example: convert 15 oz t to ton (UK): 15 oz t = 15 × 0.0000306122449 ton (UK) = 0.0004591836735 ton (UK)
Reference conditions. ton (UK): Avoirdupois system: 1 lb = 16 oz = 7000 grains = 0.45359237 kg exactly (1959 agreement).
Formula
ton (UK) = oz t × 0.00003061224489796
or ton (UK) = oz t ÷ 32666.66666667
Derivation from SI units:
- 1 oz t = 480 gr = 31.1034768 g (exact)
- 1 long ton = 2240 lb = 1016.0469088 kg (exact)
- 1 oz t = 0.0311034768 kg ÷ 1016.0469088 kg per ton (UK) = 0.00003061224489796 ton (UK)
Both units are defined exactly, so the factor is exact. Troy Ounce definition: troy ounce; Long Ton definition: long ton.
Worked examples
- A reading of 2 oz t converts to 0.0000612244898 ton (UK).
2 oz t × 0.0000306122449 = 0.0000612244898 ton (UK) - A value of 32.15 oz t is 0.0009841836735 ton (UK).
32.15 oz t × 0.0000306122449 = 0.0009841836735 ton (UK)
Troy Ounce to Long Ton conversion table
| Troy Ounces (oz t) | Long Tons (ton (UK)) |
|---|---|
| 0.1 oz t | 0.00000306122449 ton (UK) |
| 0.25 oz t | 0.000007653061224 ton (UK) |
| 0.5 oz t | 0.00001530612245 ton (UK) |
| 1 oz t | 0.0000306122449 ton (UK) |
| 2 oz t | 0.0000612244898 ton (UK) |
| 5 oz t | 0.0001530612245 ton (UK) |
| 10 oz t | 0.000306122449 ton (UK) |
| 20 oz t | 0.000612244898 ton (UK) |
| 32.15 oz t | 0.0009841836735 ton (UK) |
| 50 oz t | 0.001530612245 ton (UK) |
| 100 oz t | 0.00306122449 ton (UK) |
| 400 oz t | 0.01224489796 ton (UK) |
Where it's used
Troy Ounces are used for gold, silver and platinum prices, while long tons appear in ship displacement and deadweight tonnage. Both measure mass (commonly called weight), so the conversion is a fixed factor.
Troy Ounce to other weight and mass units
| Conversion | 1 oz t equals |
|---|---|
| troy ounce to kilogram | 0.0311034768 kg |
| troy ounce to gram | 31.1034768 g |
| troy ounce to milligram | 31103.4768 mg |
| troy ounce to microgram | 31103476.8 µg |
| troy ounce to metric ton | 0.0000311034768 t |
| troy ounce to pound | 0.06857142857 lb |
| troy ounce to ounce | 1.097142857 oz |
| troy ounce to stone | 0.004897959184 st |
| troy ounce to short ton | 0.00003428571429 ton (US) |
| troy ounce to long ton | 0.0000306122449 ton (UK) |
| troy ounce to grain | 480 gr |
| troy ounce to carat | 155.517384 ct |
Frequently asked questions
How many long tons are in 1 troy ounce?
1 oz t = 0.0000306122449 ton (UK).
How do I convert troy ounces to long tons?
Multiply the value in oz t by 0.0000306122449, or divide it by 32666.66667. For example, 15 oz t × 0.0000306122449 = 0.0004591836735 ton (UK).
Is the oz t 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 (troy or apothecary)".
- 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 Troy Ounces to Long Tons. Retrieved October 17, 2026, from https://scientificconverters.com/mass/troy-ounces-to-long-tons/
IEEE
Scientific Converters, "Convert Troy Ounces to Long Tons," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/mass/troy-ounces-to-long-tons/