Convert Carats to Long Tons

Enter the weight in carats below to get the value converted to long tons.

Results in Long Tons:
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1 ct = 1.9684E-7 lt
Do you want to convert long tons to carats?

How to Convert Carats to Long Tons

Scales are used to measure weight

To convert a carat measurement to a long ton measurement, multiply the weight by the conversion ratio. One carat is equal to 1.9684E-7 long tons, so use this simple formula to convert:

long tons = carats × 1.9684E-7

The weight in long tons is equal to the carats multiplied by 1.9684E-7.

For example, here's how to convert 5 carats to long tons using the formula above.
5 ct = (5 × 1.9684E-7) = 9.8421E-7 lt

Carats and long tons are both units used to measure weight. Keep reading to learn more about each unit of measure.


The carat is a unit of mass/weight equal to 200 milligrams.

A carat is sometimes also referred to as a metric carat. Carats can be abbreviated as ct, and are also sometimes abbreviated as CD. For example, 1 carat can be written as 1 ct or 1 CD.

Long Tons

One long ton is equal to 2,240 pounds and is mostly used in the United Kingdom as a unit of mass/weight. Long tons are not the same as the short ton, which is used mostly in the United States, or the metric ton which is used throughout the world.

The long ton is an imperial unit of weight. A long ton is sometimes also referred to as an imperial ton or displacement ton. Long tons can be abbreviated as lt, and are also sometimes abbreviated as t. For example, 1 long ton can be written as 1 lt or 1 t.

Carat Measurements and Equivalent Long Ton Conversions

Common carat values converted to the equivalent long ton value
Carats Long Tons
1 ct 0.00000019684 lt
2 ct 0.00000039368 lt
3 ct 0.00000059052 lt
4 ct 0.00000078737 lt
5 ct 0.00000098421 lt
6 ct 0.000001181 lt
7 ct 0.0000013779 lt
8 ct 0.0000015747 lt
9 ct 0.0000017716 lt
10 ct 0.0000019684 lt
11 ct 0.0000021653 lt
12 ct 0.0000023621 lt
13 ct 0.0000025589 lt
14 ct 0.0000027558 lt
15 ct 0.0000029526 lt
16 ct 0.0000031495 lt
17 ct 0.0000033463 lt
18 ct 0.0000035431 lt
19 ct 0.00000374 lt
20 ct 0.0000039368 lt
21 ct 0.0000041337 lt
22 ct 0.0000043305 lt
23 ct 0.0000045274 lt
24 ct 0.0000047242 lt
25 ct 0.000004921 lt
26 ct 0.0000051179 lt
27 ct 0.0000053147 lt
28 ct 0.0000055116 lt
29 ct 0.0000057084 lt
30 ct 0.0000059052 lt
31 ct 0.0000061021 lt
32 ct 0.0000062989 lt
33 ct 0.0000064958 lt
34 ct 0.0000066926 lt
35 ct 0.0000068894 lt
36 ct 0.0000070863 lt
37 ct 0.0000072831 lt
38 ct 0.00000748 lt
39 ct 0.0000076768 lt
40 ct 0.0000078737 lt

More Carat Weight Conversions

US Customary & Imperial Units
Convert to Tons
1 ct is equal to 2.2046E-7 tons
Convert to Pounds
1 ct is equal to 0.000441 pounds
Convert to Ounces
1 ct is equal to 0.007055 ounces
SI Units
Convert to Metric Tons
1 ct is equal to 2.0E-7 metric tons
Convert to Kilograms
1 ct is equal to 0.0002 kilograms
Convert to Grams
1 ct is equal to 0.2 grams
Convert to Milligrams
1 ct is equal to 200 milligrams