Quick answer: 1 Carat in Stone
1 ct equals 0.0000314946 st. To convert Carat to Stone, multiply by 0.0000314946 using the free calculator above — no signup needed.
Weight & Mass units
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About Weight & Mass Converter
The Weight & Mass Converter converts between 8 different units, including Kilogram, Gram, Milligram, Metric Ton, Pound (lbs). The base unit is the Kilogram, and every other unit on this page is defined as an exact multiple of it. Type any value into the calculator above to convert instantly — free, unlimited, no signup and nothing to install.
Common equivalents: 1 Kilogram = 1000 Gram, 1000000 Milligram, 0.001 Metric Ton.
Scale of this category: the smallest unit is the Milligram (mg) and the largest is the Metric Ton (t).
Last updated: 2026-09-15
Weight & Mass conversion factors
| Unit | Symbol | Value in Kilogram |
|---|---|---|
| Kilogram | kg | 1 kg = 1 kg |
| Gram | g | 1 g = 0.001 kg |
| Milligram | mg | 1 mg = 0.000001 kg |
| Metric Ton | t | 1 t = 1000 kg |
| Pound (lbs) | lb | 1 lb = 0.453592 kg |
| Ounce (oz) | oz | 1 oz = 0.0283495 kg |
| Carat | ct | 1 ct = 0.0002 kg |
| Stone | st | 1 st = 6.350293 kg |
Worked Examples
See exactly how the conversion works with real numbers, step by step.
How much is 1 Carat in Stone?
- Multiply 1 by the conversion factor 0.0000314946
- 1 Carat = 0.0000314946 Stone
How much is 100 Carat in Stone?
- Multiply 100 by the conversion factor 0.0000314946
- 100 Carat = 0.00314946 Stone
How much is 1000 Carat in Stone?
- Multiply 1000 by the conversion factor 0.0000314946
- 1000 Carat = 0.0314946 Stone
Quick Conversion Reference Table
| Carat (ct) | Stone (st) |
|---|---|
| 1 ct (Carat) | 0.0000314946 st (Stone) |
| 2 ct (Carat) | 0.0000629892 st (Stone) |
| 5 ct (Carat) | 0.000157473 st (Stone) |
| 10 ct (Carat) | 0.000314946 st (Stone) |
| 20 ct (Carat) | 0.000629892 st (Stone) |
| 50 ct (Carat) | 0.00157473 st (Stone) |
| 100 ct (Carat) | 0.00314946 st (Stone) |
| 500 ct (Carat) | 0.0157473 st (Stone) |
| 1000 ct (Carat) | 0.0314946 st (Stone) |
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How to Use This Converter
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FAQ
How much is 1 Carat in Stone?
1 Carat = 0.0000314946 Stone.
How do I convert Carat to Stone?
Enter your value in Carat into the converter above and the result in Stone appears instantly. 1 ct equals 0.0000314946 st — just multiply your value by 0.0000314946.
What is the formula for Carat to Stone?
The formula is: value in Stone = value in Carat × 0.0000314946. For example, 100 ct × 0.0000314946 = 0.00314946 st.
Is this Carat to Stone converter free and accurate?
Yes. This Carat to Stone converter is 100% free, uses the exact international conversion factor (0.0000314946), and works on any device with no signup.
How do I convert Stone back to Carat?
To convert back, divide by 0.0000314946 (or multiply by 31751.47). You can also use our dedicated How Many Carat in 1 Stone? page for instant results.
Do I need to download an app or sign up?
No. The converter runs entirely in your browser — nothing to install, no account, no fees. It even keeps working offline once the page has loaded.
Which Weight & Mass units are supported?
This converter supports 8 units: Kilogram, Gram, Milligram, Metric Ton, Pound (lbs), Ounce (oz), Carat, Stone.