Convert grain to carat
Here you can quickly calculate how many carat fit in one grain.
Only numbers, with a single decimal separator.
Choose unit - To
write a number and we convert instantly
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- scroll: formula · table · questions -
- 1 gr = 0.323995 ct
- 1 ct = 3.086472 gr
Example: grain to carat
- 1 grain = 0.323995 carat
Grain to carat conversion table
| grain | carat |
|---|---|
| 1 | 0.323995 |
| 2 | 0.647989 |
| 5 | 1.619973 |
| 10 | 3.239945 |
| 20 | 6.479891 |
| 50 | 16.199727 |
| 100 | 32.399455 |
Grain to carat formula
To convert grain to carat, multiply by 0.323995.
1 gr = 0.323995 ct
Example: 1 grain = 0.323995 carat
Common mass conversion mistakes
-
The carat used for gemstones is a unit of mass: exactly 0.2 g, so a 5-carat diamond weighs 1 gram. The karat used for gold is something else entirely, a purity scale where 24k is pure gold and 18k is 75% gold. The two cannot be converted into each other.
Quick grain and carat conversion quiz
Score:
0
21.1 carat equals 65.1 grain.
Correct answer: 21.1 carat = 65.1 grain.
241 grain equals 85.9 carat.
Correct answer: 241 grain = 78.1 carat.
21 grain equals 7.48 carat.
Correct answer: 21 grain = 6.8 carat.