Carat to Long Ton (UK) Converter
Weight · unit-converter
Convert Carat to Long Ton (UK) with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use gram-based factors (international avoirdupois pound and metric definitions). The full Weight Converter also includes carat, grain, and US/UK hundredweight.
Calculator
From: Carat (ct)
To: Long Ton (UK) (lton)
About Carat
The metric carat is exactly 0.2 grams (200 mg), commonly used for gemstones and jewelry.
About Long Ton (UK)
The long ton (UK ton) is 2,240 pounds avoirdupois (about 1.016 metric tons). It appears in UK shipping and some historical contexts.
How to convert carats to long tons (uk)
1 carat is equal to 1.96841306e-7 long ton (uk):
1 ct = (0.2 g ÷ 1016046.9088 g) lton = 1.96841306e-7 lton
Each carat is defined as 0.2 g and each long ton (uk) as 1016046.9088 g, so one ct equals 0.2 ÷ 1016046.9088 lton = 1.96841306e-7 lton.
Let w(ct) be the numeric value of the same mass measured in Carat (ct), and w(lton) the value in Long Ton (UK) (lton). Then:
w(lton) = w(ct) × (0.2 / 1016046.9088)
Equivalently, divide by how many ct fit into one lton (grams per lton divided by grams per ct):
w(lton) = w(ct) ÷ 5080234.54399999976158
Or: long ton (uk) = carat ÷ 5080234.54399999976158
Examples
Example #1: Convert 20 ct to long ton (uk)
20 ct = 20 ct × (0.2/1016046.9088) lton = 0.0000039368 lton
20 ct = 20 ct ÷ 5080234.54399999976158 = 0.0000039368 lton
Example #2: Convert 50 ct to long ton (uk)
50 ct = 50 ct × (0.2/1016046.9088) lton = 0.0000098421 lton
50 ct = 50 ct ÷ 5080234.54399999976158 = 0.0000098421 lton
Summary
To convert Carat to Long Ton (UK), multiply the value in ct by the ratio of grams per ct divided by grams per lton. Equivalently: value_lton = value_ct × (0.2 / 1016046.9088). Numerically, 1 ct equals 1.9684130552221215e-7 lton.
Relationship context
You are converting between metric (SI) (Carats) and imperial / UK (stone, long ton, pound, ounce) (Long Tons (UK)). Metric mass is decimal from the gram; US and imperial masses use pounds and ounces with fixed definitions relative to the kilogram. The numeric factor used here is 1.968413e-7.
Conversion tables
| Carat (ct) | Long Ton (UK) (lton) |
|---|---|
| 0.1 | 0.0000000197 |
| 1 | 0.0000001968 |
| 2 | 0.0000003937 |
| 3 | 0.0000005905 |
| 4 | 0.0000007874 |
| 5 | 0.0000009842 |
| 6 | 0.000001181 |
| 7 | 0.0000013779 |
| 8 | 0.0000015747 |
| 9 | 0.0000017716 |
| Carat (ct) | Long Ton (UK) (lton) |
|---|---|
| 10 | 0.0000019684 |
| 20 | 0.0000039368 |
| 30 | 0.0000059052 |
| 40 | 0.0000078737 |
| 50 | 0.0000098421 |
| 60 | 0.0000118105 |
| 70 | 0.0000137789 |
| 80 | 0.0000157473 |
| 90 | 0.0000177157 |
| 100 | 0.0000196841 |