Carats to Grams Converter
Convert carats (ct) to grams (g) instantly. Weight units matter at the wet market, where older stalls and Chinese medical halls still quote prices per kati or tael, and when following American recipes in ounces and pounds.
Result
- Grams
- 0.2 g
How to use the carats to grams converter
- Enter the carats (ct).
- The results update as you type, or press Calculate.
- Read the grams first, then the supporting figures below it.
Formula
Grams = carats × 0.2
Worked example
For example, with these inputs:
- Carats (ct): 1
the calculator returns:
- Grams: 0.2 g
Carats to Grams table
| Carats | Grams |
|---|---|
| 1 ct | 0.2 g |
| 2 ct | 0.4 g |
| 5 ct | 1 g |
| 10 ct | 2 g |
| 20 ct | 4 g |
| 25 ct | 5 g |
| 50 ct | 10 g |
| 100 ct | 20 g |
| 250 ct | 50 g |
| 500 ct | 100 g |
| 1,000 ct | 200 g |
About this conversion
Weight units matter at the wet market, where older stalls and Chinese medical halls still quote prices per kati or tael, and when following American recipes in ounces and pounds.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Frequently asked questions
How many grams are in one carat?
1 ct = 0.2 g.
How do I convert ct to g?
Grams = carats × 0.2.