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Carats to Milligrams Converter

Convert carats to milligrams and milligrams to carats instantly. Bidirectional weight converter for gemstone measurements.

ct

Milligrams

760

mg

3.8 ct = 760 mg

mg = ct × 200

Carats to Milligrams: 1 ct equals 200 mg. To convert carats to milligrams, multiply by 200 (mg = ct × 200). For example, 10 ct = 2000 mg.

How to Convert Carats to Milligrams

To convert from carats to milligrams, multiply the value by 200. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Carats to Milligrams: mg = ct × 200
  • Milligrams to Carats: ct = mg ÷ 200

Carats to Milligrams Conversion Chart

Carats (ct)Milligrams (mg)
0.120
0.2550
0.5100
1200
2400
3600
51000
102000
204000
255000
5010000
10020000
25050000
1000200000

Understanding the Units

What is a Milligram?

A milligram is one thousandth of a gram (1 mg = 0.001 g = 10⁻⁶ kg).

Common contexts: pharmaceutical dosing, nutrition labeling, analytical chemistry.

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FAQ

How many milligrams in a carat?

One carat equals exactly 200 milligrams.

How do I convert carats to milligrams?

Multiply the carat value by 200. For example, 3.8 ct = 760 mg.

Why is this conversion important in gemology?

Precision scales often measure in milligrams, while the gemstone trade quotes prices per carat. Converting between the two is essential for accurate pricing.

Is a "point" related to carats and milligrams?

Yes. One point equals 0.01 carats or 2 milligrams. A 50-point diamond is 0.5 carats or 100 mg.

How many milligrams are in 1 carat?

1 ct equals 200 mg.

How do you convert carats to milligrams?

Multiply the carat value by 200. Formula: mg = ct × 200.

How many milligrams are in 5 carats?

5 ct = 1000 mg.

How do you convert milligrams back to carats?

Use the inverse formula: ct = mg ÷ 200. For example, 1 mg = 0.005 ct.