Convert Carat (Metric) to grams
Western Europe · European Weight · standardized · modern
Exact by definition The unit is fixed by statute or standard against an exactly defined anchor, so the only rounding is in the digits displayed.
Quick answer
1 Carat (Metric) = 0.2 grams
1 Carat (Metric) = 0.2 grams. Carat (Metric) is a traditional mass unit from Western Europe.
Convert any amount
Carat (Metric) to grams table
| Carat (Metric) | grams |
|---|---|
| 0.25 Carat (Metric) | 0.05 grams |
| 0.5 Carat (Metric) | 0.1 grams |
| 1 Carat (Metric) | 0.2 grams |
| 2 Carat (Metric) | 0.4 grams |
| 3 Carat (Metric) | 0.6 grams |
| 4 Carat (Metric) | 0.8 grams |
| 5 Carat (Metric) | 1 grams |
| 10 Carat (Metric) | 2 grams |
| 20 Carat (Metric) | 4 grams |
| 25 Carat (Metric) | 5 grams |
| 50 Carat (Metric) | 10 grams |
| 100 Carat (Metric) | 20 grams |
About the Carat (Metric)
International gemstone weight. 1 Carat = 0.2g exactly.
- Symbol
- ct
- Value in SI
- 1 Carat (Metric) = 0.0002 kilogram
- Typical use
- jewellery
- Source
- UnitConvertLab measurement atlas
Every atlas conversion routes through the SI kilogram. See our methodology and data provenance pages for how these values are sourced and verified.
Frequently asked
How many grams are in a Carat (Metric)?
1 Carat (Metric) = 0.2 grams. Multiply the number of Carat (Metric) by 0.2 to get grams.
What is Carat (Metric) used for?
International gemstone weight. 1 Carat = 0.2g exactly. It is classified as standardized and dates from the modern period.
Is the Carat (Metric) value exact?
Yes for practical purposes. UnitConvertLab converts every atlas unit through the SI kilogram, so the arithmetic itself introduces no rounding beyond the digits shown.
How reliable is this Carat (Metric) conversion?
Exact by definition — The unit is fixed by statute or standard against an exactly defined anchor, so the only rounding is in the digits displayed. Source: UnitConvertLab measurement atlas.
Cite this page
UnitConvertLab. (2026). Convert Carat (Metric) to grams. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/carat-to-gram
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