How many carats is 2 stone?

2 × 31,751.47 = 63,502.94 carats. About 12.7 kg.

A record shows 50,000 carats — how many stone is that?

50,000 ÷ 31,751.47 = 1.575 stone. About 1 stone 8 lbs.

Is 1 stone exactly 31,751.47 carats?

1 st = 6350.29318 g ÷ 0.2 g/ct = 31,751.466 ct. We typically round to 31,751.47.

When would I convert stone to carats?

Practically never in modern contexts. Only for historical gemology research or weight comparison studies. See [carats to stone](/weight/carats-to-stone/) for the reverse conversion, or [stone to lbs](/weight/stone-to-lbs/) for a related conversion.

Stone (st) to Carats (ct) Converter

Enter a value to instantly convert between weight units.

From

Precision4 dp

1 Stone = 31751.4659 Carat

Key Formulas

Kilogram → Pound

lb = kg × 2.20462

Pound → Kilogram

kg = lb × 0.453592

Gram → Ounce

oz = g × 0.035274

Ounce → Gram

g = oz × 28.3495

Formula

ct = st × 31751.47

One stone equals 14 pounds or 6350.29 grams, and since a carat is 0.2 grams, one stone is about 31,751 carats. This conversion is essentially never needed in practice since stone is for body weight and carats are for gemstones — they don't overlap in real-world applications.

Source: NIST SP 811, Table B.8

Frequently Asked Questions

Real-World Examples

A historical UK record showing 1 stone of precious metal weight converts to 31,751 carats for the archive.

1 st = 31751.47 ct

A gemology research project converting 10 stone of historical weight data to carats — 317,515 ct.

10 st = 317514.7 ct

A UK antique scale calibration showing 0.5 stone of weight as 15,876 carats for comparison.

0.5 st = 15875.73 ct

A historical trade document converting 5 stone of gems to carats for the valuation — 158,757 ct.

5 st = 158757.35 ct

kg to lbs lbs to kg grams to ounces ounces to grams kg to grams stone to kg

Stone (st) to Carats (ct) Converter

Key Formulas

Formula

Frequently Asked Questions

Real-World Examples

Related Converters