WEIGHT & MASS CONVERSION
Carat to Stone.
Convert carat (ct) to stone (st), with the math explained.
1 ct = 0.00003149460888 st
THE MATH, MADE SIMPLE
How to convert carat to stone
Multiply your carat value by 0.0000314946088836 to get the equivalent in stone. Both units are normalized through the kilogram.
st = ct × 0.0000314946088810 ct = 0.000314946088836 st
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.QUICK REFERENCE
ct to st conversion table
| Carat (ct) | Stone (st) |
|---|---|
| 1 ct | 0.0000314946088836 st |
| 2 ct | 0.0000629892177671 st |
| 5 ct | 0.000157473044418 st |
| 10 ct | 0.000314946088836 st |
| 20 ct | 0.000629892177671 st |
| 50 ct | 0.00157473044418 st |
| 100 ct | 0.00314946088836 st |
| 500 ct | 0.0157473044418 st |
| 1,000 ct | 0.0314946088836 st |
About the carat
The carat (ct) is a unit of weight & mass. One carat equals 0.0002 kilogram (base unit) in this calculator.
All carat conversionsAbout the stone
The stone (st) is a unit of weight & mass. One stone equals 6.35029318 kilogram (base unit) in this calculator.
All stone conversionsCommon questions
What is 1 ct in st?
One carat equals 0.0000314946088836 st. Use the formula above for other values.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
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