Convert grain (gr) to carat (ct).
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Carat to Grain Converter (ct to gr)
Convert carat (ct) to grain (gr).Unit Converter · Mass
Quick answer
1 carat (ct) is approximately equal to 3.086472 grains (gr). 1 grain (gr) is approximately equal to 0.3239945 carats (ct).
To convert ct to gr, multiply the value in carats by 3.0864716706. For example, 10 ct = 30.86471671 gr, and 100 ct = 308.64716706 gr.
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How to convert carats to grains
How many grains are in a carat? 1 carat is about 3.086472 grains. This free ct to gr converter and carat to grain calculator gives the answer instantly for any value.
To convert carat (ct) to grain (gr), multiply the value in carats by 3.0864716706.
gr = ct × 3.0864716706
- 1
Take the value in carats
For example, 25 ct.
- 2
Multiply by 3.0864716706
25 × 3.0864716706.
- 3
Read the answer in grains
25 ct = 77.16179176 gr.
Carat to Grain conversion table
Common values from 1 to 1,000 carats converted to grains.
| Carat (ct) | Grain (gr) |
|---|---|
| 1 ct | 3.08647167 gr |
| 2 ct | 6.17294334 gr |
| 3 ct | 9.25941501 gr |
| 4 ct | 12.34588668 gr |
| 5 ct | 15.43235835 gr |
| 6 ct | 18.51883002 gr |
| 7 ct | 21.60530169 gr |
| 8 ct | 24.69177336 gr |
| 9 ct | 27.77824504 gr |
| 10 ct | 30.86471671 gr |
| 15 ct | 46.29707506 gr |
| 20 ct | 61.72943341 gr |
| 25 ct | 77.16179176 gr |
| Carat (ct) | Grain (gr) |
|---|---|
| 30 ct | 92.59415012 gr |
| 40 ct | 123.45886682 gr |
| 50 ct | 154.32358353 gr |
| 60 ct | 185.18830024 gr |
| 70 ct | 216.05301694 gr |
| 75 ct | 231.48537529 gr |
| 80 ct | 246.91773365 gr |
| 90 ct | 277.78245035 gr |
| 100 ct | 308.64716706 gr |
| 250 ct | 771.61791765 gr |
| 500 ct | 1,543.23583529 gr |
| 1,000 ct | 3,086.47167059 gr |
About carats and grains
Carat (ct)
A carat (ct) is exactly 200 milligrams (0.2 gram). It is the unit for the weight of diamonds and other gemstones, and is not the same as the karat that measures gold purity.
Grain (gr)
A grain (gr) is about 64.8 milligrams. It is used for ammunition, archery arrows and some older pharmacy measures.
ct to gr: common questions
- How many grains are in 1 carat?
- 1 carat (ct) is approximately equal to 3.086472 grains (gr). In short: 1 ct ≈ 3.086472 gr.
- How do I convert carats to grains?
- To convert ct to gr, multiply the value in carats by 3.0864716706. For example, 5 ct = 15.43235835 gr.
- How do I convert grains to carats?
- To convert gr to ct, divide the value in grains by 3.0864716706. Or open the Grain to Carat converter, which does it for you.
- What is 10 ct in gr, and what is 100 ct?
- 10 ct = 30.86471671 gr, and 100 ct = 308.64716706 gr. The table above lists more values from 1 to 1,000.
- Is this ct to gr converter accurate?
- Yes. It uses the exact conversion factor and shows results to as many as 8 decimal places, so you can rely on it for study, work and everyday measuring.
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