Pounds to Carats

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Carats to Pounds (Swap Units)


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Show formula

Pounds to Carats formula

ct =
lb * 2268.0
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More information: Pounds


The imperial (avoirdupois, or international) pound is officially defined as 453.59237 grams.


Pounds to Carats formula

ct =
lb * 2268.0


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.


Pounds to Carats table

Print table
< Smaller Values Larger Values >
Pounds Carats
0lb 0.00ct
1lb 2267.96ct
2lb 4535.92ct
3lb 6803.89ct
4lb 9071.85ct
5lb 11339.81ct
6lb 13607.77ct
7lb 15875.73ct
8lb 18143.69ct
9lb 20411.66ct
10lb 22679.62ct
11lb 24947.58ct
12lb 27215.54ct
13lb 29483.50ct
14lb 31751.46ct
15lb 34019.43ct
16lb 36287.39ct
17lb 38555.35ct
18lb 40823.31ct
19lb 43091.27ct
Pounds Carats
20lb 45359.23ct
21lb 47627.20ct
22lb 49895.16ct
23lb 52163.12ct
24lb 54431.08ct
25lb 56699.04ct
26lb 58967.00ct
27lb 61234.97ct
28lb 63502.93ct
29lb 65770.89ct
30lb 68038.85ct
31lb 70306.81ct
32lb 72574.77ct
33lb 74842.74ct
34lb 77110.70ct
35lb 79378.66ct
36lb 81646.62ct
37lb 83914.58ct
38lb 86182.54ct
39lb 88450.51ct
Pounds Carats
40lb 90718.47ct
41lb 92986.43ct
42lb 95254.39ct
43lb 97522.35ct
44lb 99790.31ct
45lb 102058.28ct
46lb 104326.24ct
47lb 106594.20ct
48lb 108862.16ct
49lb 111130.12ct
50lb 113398.08ct
51lb 115666.05ct
52lb 117934.01ct
53lb 120201.97ct
54lb 122469.93ct
55lb 124737.89ct
56lb 127005.85ct
57lb 129273.82ct
58lb 131541.78ct
59lb 133809.74ct
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