Carats to Milligrams (ct → mg)
Formula
1 ct = 200.00000000000003 mgConversion Table
| ct | mg |
|---|---|
| 0 | 0 |
| 1.0000 | 200.00 |
| 2.0000 | 400.00 |
| 3.0000 | 600.00 |
| 4.0000 | 800.00 |
| 5.0000 | 1,000.0 |
| 6.0000 | 1,200.0 |
| 7.0000 | 1,400.0 |
| 8.0000 | 1,600.0 |
| 9.0000 | 1,800.0 |
| 10.000 | 2,000.0 |
| 11.000 | 2,200.0 |
| 12.000 | 2,400.0 |
| 13.000 | 2,600.0 |
| 14.000 | 2,800.0 |
| 15.000 | 3,000.0 |
| 16.000 | 3,200.0 |
| 17.000 | 3,400.0 |
| 18.000 | 3,600.0 |
| 19.000 | 3,800.0 |
| ct | mg |
|---|---|
| 20.000 | 4,000.0 |
| 21.000 | 4,200.0 |
| 22.000 | 4,400.0 |
| 23.000 | 4,600.0 |
| 24.000 | 4,800.0 |
| 25.000 | 5,000.0 |
| 26.000 | 5,200.0 |
| 27.000 | 5,400.0 |
| 28.000 | 5,600.0 |
| 29.000 | 5,800.0 |
| 30.000 | 6,000.0 |
| 31.000 | 6,200.0 |
| 32.000 | 6,400.0 |
| 33.000 | 6,600.0 |
| 34.000 | 6,800.0 |
| 35.000 | 7,000.0 |
| 36.000 | 7,200.0 |
| 37.000 | 7,400.0 |
| 38.000 | 7,600.0 |
| 39.000 | 7,800.0 |
| ct | mg |
|---|---|
| 40.000 | 8,000.0 |
| 41.000 | 8,200.0 |
| 42.000 | 8,400.0 |
| 43.000 | 8,600.0 |
| 44.000 | 8,800.0 |
| 45.000 | 9,000.0 |
| 46.000 | 9,200.0 |
| 47.000 | 9,400.0 |
| 48.000 | 9,600.0 |
| 49.000 | 9,800.0 |
| 50.000 | 10,000 |
| 51.000 | 10,200 |
| 52.000 | 10,400 |
| 53.000 | 10,600 |
| 54.000 | 10,800 |
| 55.000 | 11,000 |
| 56.000 | 11,200 |
| 57.000 | 11,400 |
| 58.000 | 11,600 |
| 59.000 | 11,800 |
| ct | mg |
|---|---|
| 60.000 | 12,000 |
| 61.000 | 12,200 |
| 62.000 | 12,400 |
| 63.000 | 12,600 |
| 64.000 | 12,800 |
| 65.000 | 13,000 |
| 66.000 | 13,200 |
| 67.000 | 13,400 |
| 68.000 | 13,600 |
| 69.000 | 13,800 |
| 70.000 | 14,000 |
| 71.000 | 14,200 |
| 72.000 | 14,400 |
| 73.000 | 14,600 |
| 74.000 | 14,800 |
| 75.000 | 15,000 |
| 76.000 | 15,200 |
| 77.000 | 15,400 |
| 78.000 | 15,600 |
| 79.000 | 15,800 |
Carats to Milligrams Conversion
Converting Carats (ct) to Milligrams (mg) is a common weight conversion. 1 ct equals 200 mg. For example, 100 ct is equal to 20,000 mg.
Quick Mental Math: Carats to Milligrams
Multiply by approximately 200 to convert carats to milligrams.
Why is converting Carats to Milligrams tricky?
The large non-round factor is difficult for mental math.
Quick Reference Values
1 ct = 200 mg. 5 ct = 1,000 mg. 10 ct = 2,000 mg. 25 ct = 5,000 mg. 50 ct = 10,000 mg. 100 ct = 20,000 mg.
What is Carats?
Carats (ct) is a unit of weight. A carat is a unit of mass equal to 200 milligrams (0.2 grams), used primarily for gemstones and pearls. It is internationally recognized and standardized by the International Bureau of Weights and Measures (BIPM) for trade and gemology. One carat equals exactly 0.2 grams according to ISO standards [bipm-si-brochure]. The carat originated from the carob seed, historically used as a reference mass. It was standardized in 1907 by the International Committee of Weights and Measures at 200 mg to ensure uniformity in gemstone trade and valuation [bipm-si-brochure]. Carats are globally used in the jewelry industry to weigh diamonds, sapphires, and other gemstones. Countries including the US, UK, Canada, and most of Europe rely on the carat for gemstone mass measurement, aligned with ISO and BIPM standards [bipm-si-brochure].
What is Milligrams?
Milligrams (mg) is a unit of weight. A milligram (mg) is a unit of mass equal to one-thousandth of a gram, or 10^-6 kilograms according to SI standards. It quantifies very small masses in pharmaceuticals, chemistry, and nutrition [bipm-si-brochure]. One milligram equals exactly 0.001 grams, facilitating precise mass measurement at micro scales. The gram was first defined in France in 1795 during the metric system adoption, with the milligram introduced as a decimal fraction. The kilogram and its subunits like the milligram were standardized internationally through the BIPM in the 20th century to ensure global consistency [bipm-si-brochure]. Milligrams are used globally in medicine for dosing drugs, in food labeling for nutrient content, and in laboratories for chemical analysis. Regulatory bodies such as the FDA and EMA require milligram precision in pharmaceutical labeling and standards [nist-si-guide].
Common Misspellings
People often search for this conversion using these alternate spellings: carat, karat, carrots, carret, miligrams, miligram, miligrm, mgm. All of these refer to the Carats to Milligrams conversion.