Convert stone (st) to carat (ct).
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Carat to Stone Converter (ct to st)
Convert carat (ct) to stone (st).Unit Converter · Mass
Quick answer
1 carat (ct) is approximately equal to 0.00003149 stone (st). 1 stone (st) is approximately equal to 31,751.47 carats (ct).
To convert ct to st, multiply the value in carats by 0.0000314946. For example, 10 ct = 0.00031495 st, and 100 ct = 0.00314946 st.
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How to convert carats to stone
How many stone are in a carat? 1 carat is about 0.00003149 stone. This free ct to st converter and carat to stone calculator gives the answer instantly for any value.
To convert carat (ct) to stone (st), multiply the value in carats by 0.0000314946.
st = ct × 0.0000314946
- 1
Take the value in carats
For example, 25 ct.
- 2
Multiply by 0.0000314946
25 × 0.0000314946.
- 3
Read the answer in stone
25 ct = 0.00078737 st.
Carat to Stone conversion table
Common values from 1 to 1,000 carats converted to stone.
| Carat (ct) | Stone (st) |
|---|---|
| 1 ct | 0.00003149 st |
| 2 ct | 0.00006299 st |
| 3 ct | 0.00009448 st |
| 4 ct | 0.00012598 st |
| 5 ct | 0.00015747 st |
| 6 ct | 0.00018897 st |
| 7 ct | 0.00022046 st |
| 8 ct | 0.00025196 st |
| 9 ct | 0.00028345 st |
| 10 ct | 0.00031495 st |
| 15 ct | 0.00047242 st |
| 20 ct | 0.00062989 st |
| 25 ct | 0.00078737 st |
| Carat (ct) | Stone (st) |
|---|---|
| 30 ct | 0.00094484 st |
| 40 ct | 0.00125978 st |
| 50 ct | 0.00157473 st |
| 60 ct | 0.00188968 st |
| 70 ct | 0.00220462 st |
| 75 ct | 0.0023621 st |
| 80 ct | 0.00251957 st |
| 90 ct | 0.00283451 st |
| 100 ct | 0.00314946 st |
| 250 ct | 0.00787365 st |
| 500 ct | 0.0157473 st |
| 1,000 ct | 0.03149461 st |
About carats and stone
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.
Stone (st)
A stone (st) is 14 pounds, about 6.35 kilograms. It is used in the UK and Ireland for body weight.
ct to st: common questions
- How many stone are in 1 carat?
- 1 carat (ct) is approximately equal to 0.00003149 stone (st). In short: 1 ct ≈ 0.00003149 st.
- How do I convert carats to stone?
- To convert ct to st, multiply the value in carats by 0.0000314946. For example, 5 ct = 0.00015747 st.
- How do I convert stone to carats?
- Use the Stone to Carat converter, which applies the exact reverse factor.
- What is 10 ct in st, and what is 100 ct?
- 10 ct = 0.00031495 st, and 100 ct = 0.00314946 st. The table above lists more values from 1 to 1,000.
- Is this ct to st 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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