Centigram is 0.01 gram units.
Centigrams to Carats Converter — cg to ct
Convert Centigram (cg) to Carat (ct) using the exact conversion factor (1 centigram = 0.05 carat). See the formula, worked examples, and conversion table.
Centigrams to Carats 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.
A metric carat is exactly 200 milligrams.
Result = input x 1e-5 / 0.0002.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Centigrams to Carats
Weight conversions between Centigram and Carat 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: Centigram is 0.01 gram units, and a metric carat is exactly 200 milligrams.
Formula
carats = centigrams × 0.05
This factor comes from each unit's defined relationship to the category's base unit: 1 centigram equals 0.00001 base units, and 1 carat equals 0.0002 base units, so dividing one by the other gives the direct centigram-to-carat factor of 0.05.
Simple example
1 cg × 0.05 = 0.05 ct
1 centigram = 0.05 carats.
Real-world example
50 cg × 0.05 = 2.5 ct
50 centigrams = 2.5 carats.
Conversion table
| Centigram (cg) | Carat (ct) |
|---|---|
| 1 cg | 0.05 ct |
| 5 cg | 0.25 ct |
| 10 cg | 0.5 ct |
| 25 cg | 1.25 ct |
| 50 cg | 2.5 ct |
| 100 cg | 5 ct |
Reverse conversion: Carat to Centigram
0.05 ct × 20 = 1 cg
0.05 carats = 1 centigram.
centigrams = carats × 20
For a page dedicated to this direction, see Carat to Centigram.
Understanding the Centigram (cg)
Centigram is 0.01 gram units.
Understanding the Carat (ct)
A metric carat is exactly 200 milligrams.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats are in 1 centigram?
1 centigram equals 0.05 carats, using the exact defined conversion factor rather than an estimate.
How do I convert centigram to carat?
Multiply the centigram value by 0.05. The converter above does this instantly to whatever precision you set.
How do I convert carat back to centigram?
Use the reverse factor: 1 carat equals 20 centigrams. You can also use the swap control in the converter above to flip the direction instantly.
What is a centigram?
Centigram (cg) is a unit of mass/weight.
What is a carat?
Carat (ct) is a unit of mass/weight.
Is the centigram to carat conversion exact?
Yes. Both centigram and carat are defined by fixed standards rather than physical artifacts, so the factor of 0.05 used above is exact to as many digits as you choose to display.