Ounces to Carats converter

To convert ounces to carats, enter the value in the first field. The result in carats is calculated automatically using the exact conversion factor.

1 oz = 141.747615625 ct
1 ct ≈ 0.00705479238992 oz

Formula: ct = oz × 141.747615625
oz ≈ ct × 0.00705479238992

Definitions: 1 oz = 1/16 lb; 1 ct = 0.2 g

The ounce (oz) here is the avoirdupois ounce, one sixteenth of a pound, or exactly 28.349523125 grams. It is used in the United States for food packages, postage and small goods, and it is not the same as the troy ounce used for precious metals or the fluid ounce, which measures volume.

The metric carat (ct) is exactly 200 milligrams and is the unit for weighing gemstones such as diamonds. It should not be confused with the karat, which measures the purity of gold.

See the conversion table with commonly used values, handy for quick reference or study.