Grain to Carat (metric) (gr → ct)
Convert grain to carat (metric) instantly. The conversion factor below is exact by international definition.
Realtime·mass·imperial
Exact
gr
× 0.324
ct
0.323995
Precision [auto]
6
📐gr to ct formulaExact
ct = gr × 0.32399455
Inverse: gr = ct × 3.086471670588
Worked example: 1 gr = 0.32399455 ct
ℹ️About these units
Grain (gr)
Source: 1 gr = 64.79891 mg exact.
Carat (metric) (ct)
Gemstones; 1 ct = 200 mg exact.
📊Reference table: gr → ct
| Grain (gr) | Carat (metric) (ct) |
|---|---|
| 1 | 0.323995 |
| 2 | 0.647989 |
| 5 | 1.62 |
| 10 | 3.2399 |
| 15 | 4.8599 |
| 20 | 6.4799 |
| 25 | 8.0999 |
| 50 | 16.1997 |
| 100 | 32.3995 |
| 250 | 80.9986 |
| 500 | 161.9973 |
| 750 | 242.9959 |
| 1,000 | 323.9946 |
Want a downloadable CSV? Append ?format=csv to the API /api/v1/table endpoint.
🔁Reverse & related
🔌API & widget
GET https://convertnavi.com/api/v1/convert?value=10&from=grain&to=caratEmbed this converter
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