Convert milligrams to carats
1 mg = 0.005 ct. Change the amount below, or read the formula and the reference table further down.
1 milligram equals
carats
1 mg = 0.005 ct
The formula
Milligrams and carats both measure weight & mass from the same zero, so a single multiplier does the job.
ct = mg × 0.005
Going the other way? Convert carats to milligrams.
Milligrams to carats table
Common values, rounded for reading.
| Milligrams (mg) | Carats (ct) |
|---|---|
| 1 | 0.005 |
| 2 | 0.01 |
| 3 | 0.015 |
| 4 | 0.02 |
| 5 | 0.025 |
| 6 | 0.03 |
| 7 | 0.035 |
| 8 | 0.04 |
| 9 | 0.045 |
| 10 | 0.05 |
| 15 | 0.075 |
| 20 | 0.1 |
| 25 | 0.125 |
| 30 | 0.15 |
| 40 | 0.2 |
| 50 | 0.25 |
| 75 | 0.375 |
| 100 | 0.5 |
| 250 | 1.25 |
| 500 | 2.5 |
| 1,000 | 5 |
Questions people ask
- How many carats are in a milligram?
- One milligram equals 0.005 carats.
- How do I convert milligrams to carats by hand?
- Multiply the number of milligrams by 0.005. For a rough check, 0.005 is close enough for most everyday use.
- What is 1 milligram in carats?
- 1 milligram is 0.005 carats.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.