Carat to Stone Conversion Chart
This chart converts Carat (ct) to Stone (st) using the factor 0.000031494625. One ct equals 0.000031494625 st; one st equals 31,751.45 ct.
st = ct × 3.1495e-5
| ct | st |
|---|---|
| 1,000 | 0.03149462 |
| 2,000 | 0.06298925 |
| 3,000 | 0.09448387 |
| 4,000 | 0.1259785 |
| 5,000 | 0.15747312 |
| 6,000 | 0.18896775 |
| 7,000 | 0.22046237 |
| 8,000 | 0.251957 |
| 9,000 | 0.28345162 |
| 10,000 | 0.31494625 |
| 11,000 | 0.34644087 |
| 12,000 | 0.3779355 |
| 13,000 | 0.40943012 |
| 14,000 | 0.44092475 |
| 15,000 | 0.47241937 |
| 16,000 | 0.50391399 |
| 17,000 | 0.53540862 |
| 18,000 | 0.56690324 |
| 19,000 | 0.59839787 |
| 20,000 | 0.62989249 |
| 21,000 | 0.66138712 |
| 22,000 | 0.69288174 |
| 23,000 | 0.72437637 |
| 24,000 | 0.75587099 |
| 25,000 | 0.78736562 |
| 26,000 | 0.81886024 |
| 27,000 | 0.85035487 |
| 28,000 | 0.88184949 |
| 29,000 | 0.91334411 |
| 30,000 | 0.94483874 |
| 31,000 | 0.97633336 |
| 32,000 | 1.00782799 |
| 33,000 | 1.03932261 |
| 34,000 | 1.07081724 |
| 35,000 | 1.10231186 |
| 36,000 | 1.13380649 |
| 37,000 | 1.16530111 |
| 38,000 | 1.19679574 |
| 39,000 | 1.22829036 |
| 40,000 | 1.25978499 |
| 41,000 | 1.29127961 |
| 42,000 | 1.32277424 |
| 43,000 | 1.35426886 |
| 44,000 | 1.38576348 |
| 45,000 | 1.41725811 |
| 46,000 | 1.44875273 |
| 47,000 | 1.48024736 |
| 48,000 | 1.51174198 |
| 49,000 | 1.54323661 |
| 50,000 | 1.57473123 |
| ct | st |
|---|---|
| 51,000 | 1.60622586 |
| 52,000 | 1.63772048 |
| 53,000 | 1.66921511 |
| 54,000 | 1.70070973 |
| 55,000 | 1.73220436 |
| 56,000 | 1.76369898 |
| 57,000 | 1.79519361 |
| 58,000 | 1.82668823 |
| 59,000 | 1.85818285 |
| 60,000 | 1.88967748 |
| 61,000 | 1.9211721 |
| 62,000 | 1.95266673 |
| 63,000 | 1.98416135 |
| 64,000 | 2.01565598 |
| 65,000 | 2.0471506 |
| 66,000 | 2.07864523 |
| 67,000 | 2.11013985 |
| 68,000 | 2.14163448 |
| 69,000 | 2.1731291 |
| 70,000 | 2.20462373 |
| 71,000 | 2.23611835 |
| 72,000 | 2.26761298 |
| 73,000 | 2.2991076 |
| 74,000 | 2.33060222 |
| 75,000 | 2.36209685 |
| 76,000 | 2.39359147 |
| 77,000 | 2.4250861 |
| 78,000 | 2.45658072 |
| 79,000 | 2.48807535 |
| 80,000 | 2.51956997 |
| 81,000 | 2.5510646 |
| 82,000 | 2.58255922 |
| 83,000 | 2.61405385 |
| 84,000 | 2.64554847 |
| 85,000 | 2.6770431 |
| 86,000 | 2.70853772 |
| 87,000 | 2.74003234 |
| 88,000 | 2.77152697 |
| 89,000 | 2.80302159 |
| 90,000 | 2.83451622 |
| 91,000 | 2.86601084 |
| 92,000 | 2.89750547 |
| 93,000 | 2.92900009 |
| 94,000 | 2.96049472 |
| 95,000 | 2.99198934 |
| 96,000 | 3.02348397 |
| 97,000 | 3.05497859 |
| 98,000 | 3.08647322 |
| 99,000 | 3.11796784 |
| 100,000 | 3.14946247 |
How to use this chart
Find the ct value in the left column and read its st equivalent on the right. Every row uses the same conversion factor, so the printable table is suitable for quick reference without recalculating each value.
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