Convert Milligram (mg) to Carat (ct) instantly. Enter any value and get the result immediately.
mg → ct Converter
| Milligram (mg) | Carat (ct) |
|---|---|
| 0.1 mg | 0.0005 ct |
| 0.5 mg | 0.0025 ct |
| 1 mg | 0.005 ct |
| 2 mg | 0.01 ct |
| 5 mg | 0.025 ct |
| 10 mg | 0.05 ct |
| 20 mg | 0.1 ct |
| 50 mg | 0.25 ct |
| 100 mg | 0.5 ct |
| 200 mg | 1 ct |
| 500 mg | 2.5 ct |
| 1000 mg | 5 ct |
| 5000 mg | 25 ct |
| 10000 mg | 50 ct |
Formula: Carat = Milligram × 0.005
Example: 1 mg = 0.005 ct
You can also use the interactive converter above. Simply enter any Milligram value and the equivalent Carat value will appear instantly. Click the ⇄ button to reverse the conversion.
Beyond the calculator above, it helps to understand what these two units actually represent and where you will run into them in everyday life.
Step-by-step example — Convert 500 mg to ct:
A Milligram (mg) is one-thousandth of a gram, a very small unit reserved for precise, low-mass measurements.
A Carat (ct) is a unit of mass equal to exactly 200 milligrams, used almost exclusively for gemstones and pearls.
The formula is: Carat = Milligram x 0.005. Multiply any Milligram value by 0.005 to get the equivalent in Carat.
1 mg = 0.005 ct.
1 ct = 200 mg.
Milligram is smaller than Carat. 1 Carat = 200 mg.
250 mg = 1.25 ct.
5 ct = 1,000 mg.
Milligrams let doctors and pharmacists specify very small, precise drug amounts — a gram would be far too large a unit to dose most medications safely.