Convert carats to kg
Carats to kilograms. Enter a value to convert, or use the carats to kg chart further down the page.
1 carat equals 0.0002 kilograms. Going the other way, 1 kilogram = 5,000 carats.
How to convert carats to kg
To convert carats to kilograms, multiply the carat value by 0.0002. You can also divide by 5000 to get the same answer.
kg = ct × 0.0002
Worked example
Convert 15 ct to kilograms:
15 ct = 0.003 kg
carats to kg conversion chart
Use this carats to kg table for quick reference without typing anything.
| carats (ct) | kilograms (kg) |
|---|---|
| 0.01 ct | 0.000002 kg |
| 0.1 ct | 0.00002 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 |
| 20 ct | 0.004 kg |
| 50 ct | 0.01 kg |
| 100 ct | 0.02 kg |
| 1,000 ct | 0.2 kg |
What is a carat?
The metric carat is exactly 200 milligrams and is used to weigh gemstones.
What is a kilogram?
The kilogram is the SI base unit of mass. Since 2019 it has been defined by fixing the Planck constant, replacing the platinum-iridium cylinder held near Paris.
Frequently asked questions
How many kg are in a carat?
1 carats equals 0.0002 kg. Going the other way, 1 kg is 5,000 carats.
How do you convert carats to kg?
To convert carats to kilograms, multiply the carat value by 0.0002. You can also divide by 5000 to get the same answer.
What is 10 carats in kg?
10 carats equals 0.002 kg. The conversion chart on this page lists the other values people look up most often.
Related weight conversions
Convert carats to other units
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