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Convert stone to carat

Here you can quickly calculate how many carat fit in one stone.
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- scroll: formula · table · questions -

  • 1 st = 31751.4659 ct
  • 1 ct = 0.000031 st

Example: stone to carat

  • 1 stone = 31751.4659 carat

Stone to carat conversion table

stone carat
1 31751.4659
2 63502.9318
5 158757.3295
10 317514.659
20 635029.318
50 1587573.295
100 3175146.59

Stone to carat formula

To convert stone to carat, multiply by 31751.4659.

1 st = 31751.4659 ct
Example: 1 stone = 31751.4659 carat

Common mass conversion mistakes

  • A stone is often assumed to be 10 pounds, but it is 14 pounds, about 6.35 kg. A body weight of '12 stone' is therefore about 76 kg, not 54 kg. Multiply stone by 6.35 to get kilograms.
  • The carat used for gemstones is a unit of mass: exactly 0.2 g, so a 5-carat diamond weighs 1 gram. The karat used for gold is something else entirely, a purity scale where 24k is pure gold and 18k is 75% gold. The two cannot be converted into each other.

Quick stone and carat conversion quiz

Score: 0

50 stone equals 1 590 000 carat.

Correct answer: 50 stone = 1 590 000 carat.

10 carat equals 3.15 × 10⁻⁵ stone.

Correct answer: 10 carat = 0.000315 stone.

100 carat equals 0.00315 stone.

Correct answer: 100 carat = 0.00315 stone.

1 stone equals 3 180 carat.

Correct answer: 1 stone = 31 800 carat.

20 carat equals 0.000126 stone.

Correct answer: 20 carat = 0.00063 stone.

More mass conversions