A metric carat is exactly 200 milligrams.
Carats to Imperial hundredweights Converter — ct to long cwt
Convert Carat (ct) to Imperial hundredweight (long cwt) using the exact conversion factor (1 carat = 0.0000039368 imperial hundredweight). See the formula, worked examples, and conversion table.
Carats to Imperial hundredweights converter
Converter
Mass/Weight Converter
Convert SI mass, imperial weight, jewelry, atomic, and astronomy mass units.
Context values
Some unit families need one extra value for a physically accurate result.
An imperial long hundredweight is 112 pounds.
Result = input x 0.0002 / 50.80234544.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carats to Imperial hundredweights
Weight conversions between Carat and Imperial hundredweight come up constantly in everyday commerce, shipping, and cooking, since US packaging is usually labeled in pounds while most of the rest of the world uses kilograms. Specifically: A metric carat is exactly 200 milligrams, and an imperial long hundredweight is 112 pounds.
Formula
imperial hundredweights = carats × 0.00000393682611044
This factor comes from each unit's defined relationship to the category's base unit: 1 carat equals 0.0002 base units, and 1 imperial hundredweight equals 50.80234544 base units, so dividing one by the other gives the direct carat-to-imperial hundredweight factor of 0.00000393682611044.
Simple example
1 ct × 0.00000393682611 = 0.0000039368 long cwt
1 carat = 0.0000039368 imperial hundredweights.
Real-world example
50 ct × 0.00000393682611 = 0.0001968413 long cwt
50 carats = 0.0001968413 imperial hundredweights.
Conversion table
| Carat (ct) | Imperial hundredweight (long cwt) |
|---|---|
| 1 ct | 0.0000039368 long cwt |
| 5 ct | 0.0000196841 long cwt |
| 10 ct | 0.0000393683 long cwt |
| 25 ct | 0.0000984207 long cwt |
| 50 ct | 0.0001968413 long cwt |
| 100 ct | 0.0003936826 long cwt |
Reverse conversion: Imperial hundredweight to Carat
0.0000039368 long cwt × 254011.7272 = 0.9999933676 ct
0.0000039368 imperial hundredweights = 0.9999933676 carats.
carats = imperial hundredweights × 254011.7272
For a page dedicated to this direction, see Imperial hundredweight to Carat.
Understanding the Carat (ct)
A metric carat is exactly 200 milligrams.
Understanding the Imperial hundredweight (long cwt)
An imperial long hundredweight is 112 pounds.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many imperial hundredweights are in 1 carat?
1 carat equals 0.0000039368 imperial hundredweights, using the exact defined conversion factor rather than an estimate.
How do I convert carat to imperial hundredweight?
Multiply the carat value by 0.00000393682611. The converter above does this instantly to whatever precision you set.
How do I convert imperial hundredweight back to carat?
Use the reverse factor: 1 imperial hundredweight equals 254,011.7272 carats. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat?
Carat (ct) is a unit of mass/weight.
What is a imperial hundredweight?
Imperial hundredweight (long cwt) is a unit of mass/weight.
Is the carat to imperial hundredweight conversion exact?
Yes. Both carat and imperial hundredweight are defined by fixed standards rather than physical artifacts, so the factor of 0.00000393682611 used above is exact to as many digits as you choose to display.