Convert Long Tons to Carats
1 long ton (ton (UK)) equals 5080234.544 carats (ct).
1 ton (UK) = 5080234.544 ct
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk long ton to carat converter to paste a column from Excel.
How to Convert Long Ton to Carat
- 1 ton (UK) = 5080234.544 ct
- 1 ct = 1.968413055 × 10⁻⁷ ton (UK)
- Example: convert 15 ton (UK) to ct: 15 ton (UK) = 15 × 5080234.544 ct = 76203518.16 ct
Reference conditions. ton (UK): Avoirdupois system: 1 lb = 16 oz = 7000 grains = 0.45359237 kg exactly (1959 agreement).
Formula
ct = ton (UK) × 5080234.544
Derivation from SI units:
- 1 long ton = 2240 lb = 1016.0469088 kg (exact)
- 1 ct = 200 mg (metric carat, exact)
- 1 ton (UK) = 1016.0469088 kg ÷ 0.0002 kg per ct = 5080234.544 ct
Both units are defined exactly, so the factor is exact. Long Ton definition: long ton; Carat definition: carat.
Worked examples
- A reading of 5 ton (UK) converts to 25401172.72 ct.
5 ton (UK) × 5080234.544 = 25401172.72 ct - A value of 100 ton (UK) is 508023454.4 ct.
100 ton (UK) × 5080234.544 = 508023454.4 ct
Long Ton to Carat conversion table
| Long Tons (ton (UK)) | Carats (ct) |
|---|---|
| 0.5 ton (UK) | 2540117.272 ct |
| 1 ton (UK) | 5080234.544 ct |
| 2 ton (UK) | 10160469.09 ct |
| 5 ton (UK) | 25401172.72 ct |
| 10 ton (UK) | 50802345.44 ct |
| 50 ton (UK) | 254011727.2 ct |
| 100 ton (UK) | 508023454.4 ct |
| 1000 ton (UK) | 5080234544 ct |
| 10000 ton (UK) | 50802345440 ct |
Where it's used
Long Tons are used for ship displacement and deadweight tonnage, while carats appear in diamonds and gemstones. Both measure mass (commonly called weight), so the conversion is a fixed factor.
Long Ton to other weight and mass units
| Conversion | 1 ton (UK) equals |
|---|---|
| long ton to kilogram | 1016.046909 kg |
| long ton to gram | 1016046.909 g |
| long ton to milligram | 1016046909 mg |
| long ton to microgram | 1016046909000 µg |
| long ton to metric ton | 1.016046909 t |
| long ton to pound | 2240 lb |
| long ton to ounce | 35840 oz |
| long ton to stone | 160 st |
| long ton to short ton | 1.12 ton (US) |
| long ton to grain | 15680000 gr |
| long ton to troy ounce | 32666.66667 oz t |
| long ton to carat | 5080234.544 ct |
Frequently asked questions
How many carats are in 1 long ton?
1 ton (UK) = 5080234.544 ct.
How do I convert long tons to carats?
Multiply the value in ton (UK) by 5080234.544. For example, 15 ton (UK) × 5080234.544 = 76203518.16 ct.
Is the ton (UK) to ct conversion exact?
Yes. Both units are defined exactly, and 1 ton (UK) is exactly 5080234.544 ct.
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, long (2240 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, "carat, metric".
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 Long Tons to Carats. Retrieved October 17, 2026, from https://scientificconverters.com/mass/long-tons-to-carats/
IEEE
Scientific Converters, "Convert Long Tons to Carats," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/mass/long-tons-to-carats/