Ounces to Grams Converter

How to Convert Ounces to Grams

An ounce (oz) is a unit of weight used primarily in the United States and United Kingdom. The gram (g) is the base unit of mass in the metric system. Converting between ounces and grams is common in cooking, shipping, fitness tracking, and international trade.

Related tools: Ounce to Kg Converter and Lbs to G Converter.

Avoirdupois vs Troy Ounce

There are two common types of ounces. The avoirdupois ounce is used for everyday weight (food, packages, body weight). The troy ounce is used for precious metals like gold and silver. They have different gram equivalents:

• 1 avoirdupois ounce = 28.3495 grams
• 1 troy ounce = 31.1035 grams

Conversion Formulas

To convert avoirdupois ounces to grams:

Grams = Ounces × 28.3495

To convert grams to avoirdupois ounces:

Ounces = Grams ÷ 28.3495

For example, 8 ounces equals approximately 226.80 grams, and 500 grams equals approximately 17.64 ounces.

Common Conversions (Avoirdupois)

• 1 oz = 28.35 g
• 4 oz = 113.40 g (quarter pound)
• 8 oz = 226.80 g (half pound)
• 16 oz = 453.59 g (1 pound)
• 32 oz = 907.18 g (2 pounds)