Convert stone to carat

Here you can quickly calculate how many carat fit in one stone.

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Conversion from stone to carat example

Starting value Increment Accuracy

To convert stone to carat, multiply by 31751.4659.

1 st = 31751.4659 ct

Example: 1 stone = 31751.4659 carat

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.

Score: 0

10 stone equals 3.18e+5 carat.

Correct answer: 10 stone = 3.18e+5 carat.

2 carat equals 6.3e-5 stone.

Correct answer: 2 carat = 6.3e-5 stone.

50 carat equals 0.00157 stone.

Correct answer: 50 carat = 0.00157 stone.