Convert Carats to kilograms
1 carat = 0.0002 kilograms · kg = ct ÷ 5,000
When you need this conversion
This conversion goes from carats, the gemstone weight unit fixed at 0.2 grams, to kilograms, the SI base unit used worldwide for body weight and shipping. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.
Carats to kilograms conversion table
| Carats (ct) | Kilograms (kg) |
|---|---|
| 1 ct | 0.0002 kg |
| 2 ct | 0.0004 kg |
| 3 ct | 0.0006 kg |
| 5 ct | 0.001 kg |
| 10 ct | 0.002 kg |
| 15 ct | 0.003 kg |
| 20 ct | 0.004 kg |
| 25 ct | 0.005 kg |
| 50 ct | 0.01 kg |
| 75 ct | 0.015 kg |
| 100 ct | 0.02 kg |
| 250 ct | 0.05 kg |
| 500 ct | 0.1 kg |
| 1,000 ct | 0.2 kg |
The formula
kg = ct ÷ 5,000Because both units measure weight, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.
Convert the other way
Kilograms to carats →Related weight conversions
- Pounds to kilograms
- Stones to kilograms
- Carats to grams
- Grams to ounces
- Grams to carats
- Kilograms to pounds
- Kilograms to stones
- Metric tons to US tons
- Ounces to grams
- US tons to metric tons
- Milligrams to kilograms
- Grams to kilograms
Frequently asked questions
- How many kilograms are in a carat?
- There are 0.0002 kilograms in 1 carat. The formula is kg = ct ÷ 5,000.
- How do you convert carats to kilograms?
- Use the formula kg = ct ÷ 5,000. For example, 10 carats equals 0.002 kilograms.
- Is the carats to kilograms conversion exact?
- Yes. Carats and kilograms are both units of weight, related by an exact defined factor. Displayed results are rounded for readability.
- What is ct short for?
- ct is the standard symbol for carat. kg is the symbol for kilogram.