Carats to Troy Ounces

Bookmark Page Troy Ounces to Carats (Swap Units)


Note: Fractional results are rounded to the nearest 1/64. For a more accurate answer please select 'decimal' from the options above the result.

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Note: For a pure decimal result please select 'decimal' from the options above the result.

Show formula

Convert Carats to Troy Ounces

t oz =
ct * 0.0064301
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Show result in exponential format


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.


Convert Carats to Troy Ounces

t oz =
ct * 0.0064301

Troy Ounces

A unit of apothecary weight equal to 480 grains or one twelfth of a troy pound


Carats to Troy Ounces table
Print table
< Smaller Values Larger Values >
Carats Troy Ounces
0ct 0.00t oz
1ct 0.01t oz
2ct 0.01t oz
3ct 0.02t oz
4ct 0.03t oz
5ct 0.03t oz
6ct 0.04t oz
7ct 0.05t oz
8ct 0.05t oz
9ct 0.06t oz
10ct 0.06t oz
11ct 0.07t oz
12ct 0.08t oz
13ct 0.08t oz
14ct 0.09t oz
15ct 0.10t oz
16ct 0.10t oz
17ct 0.11t oz
18ct 0.12t oz
19ct 0.12t oz
Carats Troy Ounces
20ct 0.13t oz
21ct 0.14t oz
22ct 0.14t oz
23ct 0.15t oz
24ct 0.15t oz
25ct 0.16t oz
26ct 0.17t oz
27ct 0.17t oz
28ct 0.18t oz
29ct 0.19t oz
30ct 0.19t oz
31ct 0.20t oz
32ct 0.21t oz
33ct 0.21t oz
34ct 0.22t oz
35ct 0.23t oz
36ct 0.23t oz
37ct 0.24t oz
38ct 0.24t oz
39ct 0.25t oz
Carats Troy Ounces
40ct 0.26t oz
41ct 0.26t oz
42ct 0.27t oz
43ct 0.28t oz
44ct 0.28t oz
45ct 0.29t oz
46ct 0.30t oz
47ct 0.30t oz
48ct 0.31t oz
49ct 0.32t oz
50ct 0.32t oz
51ct 0.33t oz
52ct 0.33t oz
53ct 0.34t oz
54ct 0.35t oz
55ct 0.35t oz
56ct 0.36t oz
57ct 0.37t oz
58ct 0.37t oz
59ct 0.38t oz
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