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Convert milligram to carat

Here you can quickly calculate how many carat fit in one milligram.
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  • 1 mg = 0.005 ct
  • 1 ct = 200 mg

Example: milligram to carat

  • 1 milligram = 0.005 carat

Milligram to carat conversion table

milligram carat
1 0.005
2 0.01
5 0.025
10 0.05
20 0.1
50 0.25
100 0.5

Milligram to carat formula

To convert milligram to carat, divide by 200.

1 mg = 0.005 ct
Example: 1 milligram = 0.005 carat

Common mass conversion mistakes

  • The carat used for gemstones is a unit of mass: exactly 0.2 g, so a 5-carat diamond weighs 1 gram. The karat used for gold is something else entirely, a purity scale where 24k is pure gold and 18k is 75% gold. The two cannot be converted into each other.

Quick milligram and carat conversion quiz

Score: 0

21 carat equals 2 100 milligram.

Correct answer: 21 carat = 4 200 milligram.

63 milligram equals 0.315 carat.

Correct answer: 63 milligram = 0.315 carat.

2.4 milligram equals 0.012 carat.

Correct answer: 2.4 milligram = 0.012 carat.

9 milligram equals 0.045 carat.

Correct answer: 9 milligram = 0.045 carat.

132 milligram equals 1.32 carat.

Correct answer: 132 milligram = 0.66 carat.

More mass conversions