Ounces Converter

Ounce

An ounce (oz) is a small US customary unit of weight equal to 1/16 of a pound, or about 28.35 grams. It is commonly used in cooking, portion sizes, mail weighing, and food packaging. Ounces provide a practical scale for items too small for pounds but too large for grams alone.

Although the same word, ounce, also refers to a liquid measurement (fluid ounce), the two units are completely different. This converter focuses on ounces used for weight.

Ounces in Everyday Measurement

You’ll often see ounces listed on nutrition labels, coffee packaging, and snack foods. Portion control in recipes often uses ounces as well, helping cooks measure ingredients quickly without a scale.

Since ounces do not align neatly with metric units, a converter is useful to switch between grams and ounces accurately. It allows clearer comparisons across labels and recipes from different countries.