Ounce (oz) to Gram (g)

Convert ounces to grams. Essential when adapting American or British recipes for metric kitchen scales, checking portion weights on European nutrition labels, or comparing package sizes across markets. One ounce equals 28.3495 grams.

Frequently asked questions

1 ounce (oz, avoirdupois) equals 28.3495 grams. The troy ounce used for precious metals is slightly heavier at 31.1035 grams. Food and recipe ounces are always the avoirdupois variety.

8 ounces equals 226.8 grams. Eight ounces is half a pound (½ lb) — a common portion size for meat and cheese in US and UK recipes.

Multiply the number of ounces by 28.3495. Example: 3.5 oz × 28.35 = 99.2 grams — effectively 100 grams.

1.5 ounces of nuts equals 42.5 grams. American nutrition labels frequently list serving sizes in ounces; European labels use grams. A kitchen scale is the most accurate way to measure either.