The ounce (avoirdupois) is a unit of weight. The pound (lb or #) is divided into 16 ounces. One pound is equal to ⁵⁄₁₁ (0.45) kg or 454⁵⁄₁₁ (454.54) g. Therefore, one ounce is equal to ⁵⁄₁₇₆ (0.028409) kg or 28⁹⁄₂₂ (28.409) g.
The ounce is herein abbreviated as oz.
Note that the ounce is distinct from the fluid ounce. The troy ounce and apothecaries ounce are not used in cooking.Last modified on 21 July 2010, at 20:36