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Carat to Gram Converter
Converts carat to gram instantly. One carat equals 0.2 gram. Includes a reference table and the reverse conversion.
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Enter a value to convert.
In short
One carat equals 0.2 gram. To convert carat to gram, multiply by 0.2. To go the other way, multiply gram by 5. So 5 carat is 1 gram, 10 is 2 and 100 is 20. Both units measure weight and mass, so the conversion is a single exact multiplication with no offset — the same factor works in a spreadsheet or in code.
How to use the Carat to Gram Converter
- Type the value you want to convert.
- Pick the unit you are converting from and the unit you want.
- The converted value and the exact conversion factor are shown instantly.
About the Carat to Gram Converter
The Carat to Gram Converter converts carat to gram instantly. One carat equals 0.2 gram. Includes a reference table and the reverse conversion. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.
What people use it for
- Converting a single carat figure without opening a spreadsheet.
- Checking a specification written in carat against equipment rated in gram.
- Getting the factor itself so you can reuse it in a formula.
Details
| 1 Carat | 0.2 Gram |
|---|---|
| 1 Gram | 5 Carat |
| Conversion type | Exact multiplication — no offset needed |
| Measures | Weight and mass |
The maths behind it
This tool uses gram = carat × 0.2, because both units are defined against the Kilogram. Every intermediate value is shown on screen, so the result can be checked by hand.
Explained in our guides
All guidesFrequently asked questions
Does the Carat to Gram Converter cost anything?
There is no cost and no cap. The Carat to Gram Converter is not a demo of a paid product, so nothing is held back or watermarked.
Does anything I enter leave my computer?
No. The Carat to Gram Converter runs entirely in your browser using JavaScript. Nothing is transmitted, logged or stored, which you can verify yourself in the Network tab of your browser's developer tools.
What formula does the Carat to Gram Converter use?
It uses gram = carat × 0.2, because both units are defined against the Kilogram. The full working is printed under the result, so you can follow every step rather than trusting a black box.
Give me a worked example.
Enter 10 carat and the Carat to Gram Converter returns 2 gram.
When would I actually need the Carat to Gram Converter?
Typical uses: converting a single carat figure without opening a spreadsheet. Checking a specification written in carat against equipment rated in gram. Getting the factor itself so you can reuse it in a formula. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
What figures does the Carat to Gram Converter work from?
1 Carat is 0.2 Gram. 1 Gram is 5 Carat. Conversion type is Exact multiplication — no offset needed. These are printed on the page itself, so you do not have to take them on trust.
Can I rely on this for exact work?
The calculation runs in double precision and the result is shown to ten significant figures, so converting a value and converting it back returns the original. What is displayed is rounded for readability; what is copied is not.
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