Carats to Milligrams Converter
Convert carats (ct) to milligrams (mg)
Result
200 mg
Milligrams
1 ct = 200 mg
1 ct in other units
- 1Enter a valueType the number to convert
- 2Pick the unitsChoose what to convert from and to
- 3Read the resultSee it in every other unit too
How to convert carats to milligrams
One carat equals 200 milligrams, so multiply the number of carats by 200.
mg = ct × 200
1 ct = 200 mg · 1 mg = 0.005 ct
Worked example
To convert 5 carats to milligrams: 5 ct × 200 = 1,000 mg.
About carats (ct)
A carat is exactly 200 mg, used to weigh diamonds and gemstones. (Gold purity “karat” is a different thing.)
About milligrams (mg)
A milligram is one thousandth of a gram. Medicine doses and nutrition labels often use milligrams.
More conversions
Carats to other units
Other units to Milligrams
Frequently asked questions
How many milligrams are in one carat?
One carat equals 200 milligrams.
How many carats are in one milligram?
One milligram equals 0.005 carats.
How do I convert carats to milligrams?
Use the formula mg = ct × 200. For example, 5 ct × 200 = 1,000 mg.