Carat to Stone Converter
Enter a value in carat and get the equivalent in stone instantly. The calculator uses the standard unit relationship and runs directly in your browser.
Carat → Stone
Formula
This conversion page is dedicated to the carat-to-stone direction so the unit relationship, reverse path and examples are easy to find. For scale-factor units, XpressCalculator converts through the domain base unit using internationally recognized unit definitions. Temperature scales use their standard offset-and-scale equations rather than a simple multiplier.
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Starting with 1 carat (ct), the converter returns 0.0000314946 stone (st). For any other value, enter the number above and the browser recalculates the result immediately.
Quick conversion table
| Carat | Stone |
|---|---|
| 1 ct | 0.0000314946 st |
| 5 ct | 0.000157473 st |
| 10 ct | 0.0003149461 st |
| 25 ct | 0.0007873652 st |
| 50 ct | 0.0015747304 st |
| 100 ct | 0.0031494609 st |
Helpful guide
Unit conversions are most reliable when the source value and unit are identified correctly. Do not confuse similarly named US customary and imperial units, and keep significant figures appropriate to the precision of the original measurement. For engineering, scientific, medical or safety-critical work, confirm the measurement standard required by your application.
Use sensible precision and verify critical decisions with an authoritative source or qualified professional.
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How do I convert carat to stone?
Multiply the carat value by 0.0000314946 to get stone. This page performs the conversion instantly and shows the relationship clearly.
Is this carat to stone conversion exact?
The mathematical unit factor is applied directly. Displayed results may be rounded for readability, so retain more digits when high precision matters.
Can I reverse the conversion?
Yes. Use the linked stone to carat converter to reverse the direction without re-entering the formula manually.