Stone to carats converter
Carats (ct)
1 stone = 31,751.4659 carats
How to convert stone to carats
ct = st × 31751.4659
Multiply the number of stone by 31751.4659 to get carats. Going the other way, divide by 31751.4659 (or multiply by 0.0000314946088836).
One stone is exactly defined as 31751.4659 carats (to 12 significant figures), and one carat is 0.0000314946088836 stone.
Worked examples
- Convert 5 stone: 5 × 31751.4659 = 158,757.3295 158,757.3295 carats.
- Convert 12.5 stone: 12.5 × 31751.4659 = 396,893.3237 396,893.3237 carats.
- Convert 250 stone: 250 × 31751.4659 = 7,937,866.475 7,937,866.475 carats.
Quick-reference table
| st | ct |
|---|---|
| 1 | 31,751.4659 |
| 2 | 63,502.9318 |
| 3 | 95,254.3977 |
| 5 | 158,757.3295 |
| 10 | 317,514.659 |
| 15 | 476,271.9885 |
| 20 | 635,029.318 |
| 25 | 793,786.6475 |
| 50 | 1,587,573.295 |
| 75 | 2,381,359.942 |
| 100 | 3,175,146.59 |
| 1,000 | 31,751,465.9 |
| ct | st |
|---|---|
| 1 | 0.00003149460888 |
| 2 | 0.00006298921777 |
| 3 | 0.00009448382665 |
| 5 | 0.0001574730444 |
| 10 | 0.0003149460888 |
| 15 | 0.0004724191333 |
| 20 | 0.0006298921777 |
| 25 | 0.0007873652221 |
| 50 | 0.001574730444 |
| 75 | 0.002362095666 |
| 100 | 0.003149460888 |
| 1,000 | 0.03149460888 |
Related conversions
Frequently asked questions
How many carats are in 1 stone?
1 stone equals 31,751.4659 carats.
What is the formula to convert stone to carats?
Use ct = st × 31751.4659. Multiply the number of stone by 31751.4659 to get carats. Going the other way, divide by 31751.4659 (or multiply by 0.0000314946088836).
What is 100 stone in carats?
100 stone is 3,175,146.59 carats.