Carats to Milligrams (ct to mg)

Milligrams to Carats (Swap Units)


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Carats to Milligrams formula

mg =
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Abbreviated "ct." and spelled with a "c" is a measure of weight used for gemstones. One carat is equal to 1/5 of a gram (200 milligrams). Stones are measured to the nearest hundredth of a carat. A hundreth of a carat is also called a point. Thus a .10 carat stone can be called either 10 points, or 1/10 of a carat. Small stones like .05, and .10ct are most often referred to by point designations. Note that karat with a "K" is a measure of the purity of a gold alloy. A one carat round diamond of average proportions is approximately 6.5mm in diameter. Note that this relationship of weight and size is different for each family of stones. For example ruby and sapphire are both heavier than diamond (technically, they have a higher specific gravity, so a 1 carat ruby or sapphire is smaller in size than a on carat diamond. See Weights and Measures of Gold, Silver and Precious Gems for more information.


Carats to Milligrams formula

mg =


A unit of mass equal to one-thousandth of a gram.


Carats to Milligrams table

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< Smaller Values Larger Values >
Carats Milligrams
0ct 0.00mg
1ct 200.00mg
2ct 400.00mg
3ct 600.00mg
4ct 800.00mg
5ct 1000.00mg
6ct 1200.00mg
7ct 1400.00mg
8ct 1600.00mg
9ct 1800.00mg
10ct 2000.00mg
11ct 2200.00mg
12ct 2400.00mg
13ct 2600.00mg
14ct 2800.00mg
15ct 3000.00mg
16ct 3200.00mg
17ct 3400.00mg
18ct 3600.00mg
19ct 3800.00mg
Carats Milligrams
20ct 4000.00mg
21ct 4200.00mg
22ct 4400.00mg
23ct 4600.00mg
24ct 4800.00mg
25ct 5000.00mg
26ct 5200.00mg
27ct 5400.00mg
28ct 5600.00mg
29ct 5800.00mg
30ct 6000.00mg
31ct 6200.00mg
32ct 6400.00mg
33ct 6600.00mg
34ct 6800.00mg
35ct 7000.00mg
36ct 7200.00mg
37ct 7400.00mg
38ct 7600.00mg
39ct 7800.00mg
Carats Milligrams
40ct 8000.00mg
41ct 8200.00mg
42ct 8400.00mg
43ct 8600.00mg
44ct 8800.00mg
45ct 9000.00mg
46ct 9200.00mg
47ct 9400.00mg
48ct 9600.00mg
49ct 9800.00mg
50ct 10000.00mg
51ct 10200.00mg
52ct 10400.00mg
53ct 10600.00mg
54ct 10800.00mg
55ct 11000.00mg
56ct 11200.00mg
57ct 11400.00mg
58ct 11600.00mg
59ct 11800.00mg