Decigram is 0.1 gram units.
Decigrams to Carats Converter — dg to ct
Convert Decigram (dg) to Carat (ct) using the exact conversion factor (1 decigram = 0.5 carat). See the formula, worked examples, and conversion table.
Decigrams 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 0.0001 / 0.0002.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Decigrams to Carats
Weight conversions between Decigram 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: Decigram is 0.1 gram units, and a metric carat is exactly 200 milligrams.
Formula
carats = decigrams × 0.5
This factor comes from each unit's defined relationship to the category's base unit: 1 decigram equals 0.0001 base units, and 1 carat equals 0.0002 base units, so dividing one by the other gives the direct decigram-to-carat factor of 0.5.
Simple example
1 dg × 0.5 = 0.5 ct
1 decigram = 0.5 carats.
Real-world example
50 dg × 0.5 = 25 ct
50 decigrams = 25 carats.
Conversion table
| Decigram (dg) | Carat (ct) |
|---|---|
| 1 dg | 0.5 ct |
| 5 dg | 2.5 ct |
| 10 dg | 5 ct |
| 25 dg | 12.5 ct |
| 50 dg | 25 ct |
| 100 dg | 50 ct |
Reverse conversion: Carat to Decigram
0.5 ct × 2 = 1 dg
0.5 carats = 1 decigram.
decigrams = carats × 2
For a page dedicated to this direction, see Carat to Decigram.
Understanding the Decigram (dg)
Decigram is 0.1 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 decigram?
1 decigram equals 0.5 carats, using the exact defined conversion factor rather than an estimate.
How do I convert decigram to carat?
Multiply the decigram value by 0.5. The converter above does this instantly to whatever precision you set.
How do I convert carat back to decigram?
Use the reverse factor: 1 carat equals 2 decigrams. You can also use the swap control in the converter above to flip the direction instantly.
What is a decigram?
Decigram (dg) is a unit of mass/weight.
What is a carat?
Carat (ct) is a unit of mass/weight.
Is the decigram to carat conversion exact?
Yes. Both decigram and carat are defined by fixed standards rather than physical artifacts, so the factor of 0.5 used above is exact to as many digits as you choose to display.