Carats to Stones (ct to st) conversion calculator

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1ct = 3.0E-5st

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Note: You can increase or decrease the accuracy of this answer by selecting the number of significant figures required from the options above the result.

Carats to Stones conversion formula

Carats to Stones conversion formula

Stones = Carats / 31756.11305176

1 Carats to Stones calculation

Stones = Carats / 31756.11305176

Stones = 1 / 31751.4659

Stones = 3.0E-5

Stones to Carats (Swap units)

What is a carat?

A metric carat is 200 milligrams (0.2 grams), the unit gemstones and pearls are weighed in. Karat with a K, which measures gold purity, is a different thing.

What is a stone?

A stone is 14 pounds, or about 6.35 kilograms, and the United Kingdom and Ireland use it almost entirely for body weight. Elsewhere people use kilograms or pounds.

We provide a calculator on this site to convert stones to kilograms.

 

 

Carats to Stones table

Starting value
Increment
Accuracy
Carats
Stones
0ct
0.00000st
1ct
0.00003st
2ct
0.00006st
3ct
0.00009st
4ct
0.00013st
5ct
0.00016st
6ct
0.00019st
7ct
0.00022st
8ct
0.00025st
9ct
0.00028st
10ct
0.00031st
11ct
0.00035st
12ct
0.00038st
13ct
0.00041st
14ct
0.00044st
15ct
0.00047st
16ct
0.00050st
17ct
0.00054st
18ct
0.00057st
19ct
0.00060st
Carats
Stones
20ct
0.00063st
21ct
0.00066st
22ct
0.00069st
23ct
0.00072st
24ct
0.00076st
25ct
0.00079st
26ct
0.00082st
27ct
0.00085st
28ct
0.00088st
29ct
0.00091st
30ct
0.00094st
31ct
0.00098st
32ct
0.00101st
33ct
0.00104st
34ct
0.00107st
35ct
0.00110st
36ct
0.00113st
37ct
0.00117st
38ct
0.00120st
39ct
0.00123st
Carats
Stones
40ct
0.00126st
41ct
0.00129st
42ct
0.00132st
43ct
0.00135st
44ct
0.00139st
45ct
0.00142st
46ct
0.00145st
47ct
0.00148st
48ct
0.00151st
49ct
0.00154st
50ct
0.00157st
51ct
0.00161st
52ct
0.00164st
53ct
0.00167st
54ct
0.00170st
55ct
0.00173st
56ct
0.00176st
57ct
0.00180st
58ct
0.00183st
59ct
0.00186st
Carats
Stones
60ct
0.00189st
61ct
0.00192st
62ct
0.00195st
63ct
0.00198st
64ct
0.00202st
65ct
0.00205st
66ct
0.00208st
67ct
0.00211st
68ct
0.00214st
69ct
0.00217st
70ct
0.00220st
71ct
0.00224st
72ct
0.00227st
73ct
0.00230st
74ct
0.00233st
75ct
0.00236st
76ct
0.00239st
77ct
0.00243st
78ct
0.00246st
79ct
0.00249st