Stone to carats

carats = stone × 31,751.47

How to convert stone to carats

One stone is 31,751.47 carats, so multiply the number of stone by 31,751.47. For example, 20 stone is 20 × 31,751.47 = 635,029.32 carats. To go back, divide by the same number, or multiply by 0.00003149.

Quick estimate

Multiplying by about 30000 gets within 5.5% of the exact answer, which is enough to check that a result makes sense.

Where it comes up

Mass conversions come up in cooking and baking, shipping and luggage limits, body weight, medicine doses and buying food by weight.

stone	carats
1 st	31,751.47 ct
2 st	63,502.93 ct
3 st	95,254.4 ct
4 st	127,005.86 ct
5 st	158,757.33 ct
6 st	190,508.8 ct
7 st	222,260.26 ct
8 st	254,011.73 ct
9 st	285,763.19 ct
10 st	317,514.66 ct
11 st	349,266.12 ct
12 st	381,017.59 ct
13 st	412,769.06 ct
14 st	444,520.52 ct
15 st	476,271.99 ct
16 st	508,023.45 ct
17 st	539,774.92 ct
18 st	571,526.39 ct
19 st	603,277.85 ct
20 st	635,029.32 ct
25 st	793,786.65 ct
30 st	952,543.98 ct
40 st	1,270,058.64 ct
50 st	1,587,573.29 ct
60 st	1,905,087.95 ct
70 st	2,222,602.61 ct
75 st	2,381,359.94 ct
80 st	2,540,117.27 ct
90 st	2,857,631.93 ct
100 st	3,175,146.59 ct
120 st	3,810,175.91 ct
150 st	4,762,719.88 ct
200 st	6,350,293.18 ct
250 st	7,937,866.48 ct
300 st	9,525,439.77 ct
400 st	12,700,586.36 ct
500 st	15,875,732.95 ct
750 st	23,813,599.43 ct
1,000 st	31,751,465.9 ct
1,500 st	47,627,198.85 ct
2,000 st	63,502,931.8 ct
5,000 st	158,757,329.5 ct
10,000 st	317,514,659 ct

Questions

How many carats are in a stone?

31,751.47 carats.

How do I convert stone to carats in a spreadsheet?

Put the value in A1 and type =A1*31751.47, then fill the formula down the column.

Are the values in the table exact?

They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.