Convert Gram to Carat
Use this free converter to change grams (g) into carats (ct). Gram and carat both measure weight & mass. As a quick reference, 1 g equals 5 ct, and 1 ct equals 0.2 g.
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Carat (ct)
5
1 g = 5 ct
Weight & Mass conversion table
| Gram | Carat |
|---|---|
| 0.01 | 0.05 |
| 0.1 | 0.5 |
| 0.5 | 2.5 |
| 1 | 5 |
| 2 | 10 |
| 3 | 15 |
| 5 | 25 |
| 10 | 50 |
| 20 | 100 |
| 25 | 125 |
| 50 | 250 |
| 100 | 500 |
| 1,000 | 5000 |
How to convert Gram to Carat
Multiply the gram value by 5 to get carats.
- Enter the number of grams you want to convert.
- The converter instantly shows the equivalent value in carats.
- Worked example: 15 g × 5 = 75 ct.
- Use the swap button to reverse the conversion (carat to gram).
About these units
Gram (g)
- Definition
- A gram (g) is one thousandth of a kilogram, a small metric unit of mass used for light objects.
- History
- Defined in the 1790s as the mass of one cubic centimeter of water at its freezing point.
- Current use
- Grams are used for food portions, nutrition labels, postage, and laboratory work worldwide.
Carat (ct)
- Definition
- A carat (ct) is a unit of mass for gemstones equal to exactly 200 milligrams.
- History
- It takes its name from the carob seed, once used as a counterweight, and was standardised at 0.2 g in 1907.
- Current use
- Carats express the weight of diamonds and other precious stones in the jewellery trade.
Frequently asked questions
How many carats are in a gram?
There are 5 ct in 1 g. To convert, multiply the number of grams by 5.
How do I convert grams to carats?
Multiply the gram value by 5 to get carats. For example, 10 g = 50 ct.
Is this gram-to-carat converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Gram to other weight & mass units
| Unit | 1 Gram equals |
|---|---|
| Kilogram (kg) | 0.001 kg |
| Milligram (mg) | 1000 mg |
| Microgram (µg) | 1000000 µg |
| Metric Ton (t) | 0.000001 t |
| Pound (lb) | 0.0022046226 lb |
| Ounce (oz) | 0.035273962 oz |
| Stone (st) | 0.00015747304 st |
| US Ton (ton) | 0.0000011023113 ton |
| Imperial Ton (long ton) | 9.8421e-7 long ton |
| Carat (ct) | 5 ct |