⚖️ Weight & Mass
grams to carats (ct) Converter
Convert grams to carats (ct) instantly with a reference table.
Quick answer: To convert grams to carats (ct), multiply by 5. For example, 1 grams = 5 carats (ct). Use the calculator below for any value.
grams to carats (ct)
→
Common conversions
| grams | carats (ct) |
|---|
Formula:
How to convert grams to carats (ct)
1
Enter your value
Type the number of grams you want to convert into the left box. The result in carats (ct) appears instantly in the right box. You can also type into the right box to convert in the other direction.
2
Use the swap button
Click the ⇄ Swap button to reverse the conversion — carats (ct) to grams. Your current value carries across so you don't have to re-enter anything.
3
About grams and carats (ct)
grams and carats (ct) are common weight measurements.
💡 Did you know?
Multiply grams by 5 to get carats. A 1-carat diamond weighs 200 mg — less than a paperclip. The carat weight is measured to the nearest 0.01 carat (2 mg) for diamonds under 1 carat, and to 0.001 carat for larger stones.
📊 Common conversions at a glance
| grams | carats (ct) |
|---|---|
| 0.02 | 0.1 |
| 0.05 | 0.25 |
| 0.1 | 0.5 |
| 0.2 | 1 |
| 0.3 | 1.5 |
| 0.5 | 2.5 |
Reviewed for 2026. grams ↔ carats (ct) conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.