Convert Milligrams to carats
1 milligram = 0.005 carats · ct = mg ÷ 200
When you need this conversion
This conversion goes from milligrams, the unit used for medication doses and nutrition labels, to carats, the gemstone weight unit fixed at 0.2 grams. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.
Milligrams to carats conversion table
| Milligrams (mg) | Carats (ct) |
|---|---|
| 1 mg | 0.005 ct |
| 2 mg | 0.01 ct |
| 3 mg | 0.015 ct |
| 5 mg | 0.025 ct |
| 10 mg | 0.05 ct |
| 15 mg | 0.075 ct |
| 20 mg | 0.1 ct |
| 25 mg | 0.125 ct |
| 50 mg | 0.25 ct |
| 75 mg | 0.375 ct |
| 100 mg | 0.5 ct |
| 250 mg | 1.25 ct |
| 500 mg | 2.5 ct |
| 1,000 mg | 5 ct |
The formula
ct = mg ÷ 200Because 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
Carats to milligrams →Related weight conversions
- Grams to carats
- Grams to ounces
- Kilograms to pounds
- Kilograms to stones
- Metric tons to US tons
- Ounces to grams
- Pounds to kilograms
- Stones to kilograms
- US tons to metric tons
- Carats to grams
- Milligrams to grams
- Milligrams to kilograms
Frequently asked questions
- How many carats are in a milligram?
- There are 0.005 carats in 1 milligram. The formula is ct = mg ÷ 200.
- How do you convert milligrams to carats?
- Use the formula ct = mg ÷ 200. For example, 10 milligrams equals 0.05 carats.
- Is the milligrams to carats conversion exact?
- Yes. Milligrams and carats are both units of weight, related by an exact defined factor. Displayed results are rounded for readability.
- What is mg short for?
- mg is the standard symbol for milligram. ct is the symbol for carat.