Direct answer
How Many Grams Are in an Ounce?
Direct answer: 1 avoirdupois ounce equals 28.3495 grams, with converter links and caveats for recipes.
Question
How many grams are in an ounce?
1 ounce equals 28.3495 grams.
1 oz
28.3495 g
Formula
grams = ounces x 28.3495
Category
Weight / mass
Explanation
For everyday weight and recipe conversions, ounce usually means avoirdupois ounce.
Multiply ounces by 28.3495 to get grams. Divide grams by 28.3495 to get ounces.
Fluid ounces are different: fl oz measures volume, while oz measures weight.