How to convert ounces to grams
Formula: g = oz ÷ 0.0352739619. Worked example: 10 oz = 283.4952 g. Quick estimate: multiply by about 30 — the error is 5.8%, fine for everyday use but not for engineering or shopping by exact size.
About these units
The avoirdupois ounce is 1/16 of a pound, exactly 28.349523125 g. Ounces appear in US recipes and on food labels. Do not confuse it with the troy ounce used for precious metals (31.1034768 g) or the fluid ounce, which is a volume.
Category: weight. Results on this page are calculated in your browser and rounded to 7 significant digits; the table above uses 6. For other units of weight open the full unit converter, or use the reverse page — grams to ounces.