Convert carat (troy) to grain (troy)
Here you can quickly calculate how many grain (troy) fit in one carat (troy).
Only numbers, with a single decimal separator.
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- scroll: formula · table · questions -
- 1 ct t = 3.163633 gr t
- 1 gr t = 0.316092 ct t
Example: carat (troy) to grain (troy)
- 1 carat (troy) = 3.163633 grain (troy)
Carat (troy) to grain (troy) conversion table
| carat (troy) | grain (troy) |
|---|---|
| 1 | 3.163633 |
| 2 | 6.327267 |
| 5 | 15.818167 |
| 10 | 31.636335 |
| 20 | 63.272669 |
| 50 | 158.181673 |
| 100 | 316.363346 |
Carat (troy) to grain (troy) formula
To convert carat (troy) to grain (troy), multiply by 3.163633.
1 ct t = 3.163633 gr t
Example: 1 carat (troy) = 3.163633 grain (troy)
Common mass conversion mistakes
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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 carat (troy) and grain (troy) conversion quiz
Score:
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57 carat (troy) equals 153 grain (troy).
Correct answer: 57 carat (troy) = 180 grain (troy).
225 carat (troy) equals 641 grain (troy).
Correct answer: 225 carat (troy) = 712 grain (troy).
20 carat (troy) equals 56.9 grain (troy).
Correct answer: 20 carat (troy) = 63.3 grain (troy).
22.2 carat (troy) equals 70.2 grain (troy).
Correct answer: 22.2 carat (troy) = 70.2 grain (troy).