Carat to Stone Converter.
Exactly 200 milligrams, the standard unit for gemstone and diamond weight. Converting to stones: Equal to 14 pounds, still used for personal body weight in the UK and Ireland. One carat equals 0.0000314946088836 st.
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Conversion formula
Divide the carat value by 31,751.4659 to get stones. (factor: 0.0000314946088836)
1 ct = 0.0000314946088836 st
Quick reference table
| ct | st |
|---|---|
| 1,000,000 ct | 31.4946088836 st |
| 10,000,000 ct | 314.946088836 st |
| 100,000,000 ct | 3,149.46088836 st |
| 1,000,000,000 ct | 31,494.6088836 st |
Need the reverse? Try ourStone to Carat.
Carat to Stone FAQ
How many stones are in one carat?
One carat equals 0.0000314946088836 st. Multiply by 3.149461e-5 to convert any value.
How do you convert ct to st?
Divide the carat value by 31,751.4659 to get stones.
When would you use carats vs stones?
Exactly 200 milligrams, the standard unit for gemstone and diamond weight. Equal to 14 pounds, still used for personal body weight in the UK and Ireland.