Oz to Grams Converter
Convert ounces to grams quickly and easily. Free oz to g converter with common conversion values.
Formula
g = oz × 28.3495
Common Conversions
How to Convert Ounces to Grams
1 oz = 28.3495 grams. Multiply ounces by 28.35 (close enough for cooking and most everyday use) to get grams. So 4 oz × 28.35 = 113 grams. The avoirdupois ounce is 1/16 of a pound, defined exactly as 28.349523125 grams since the 1959 international agreement.
Most kitchen scales offer both units already. The conversion mainly comes up for American recipes in non-US kitchens, where weight ingredients (chocolate, butter, cheese) are listed in ounces and need conversion to grams for European-style scales. Use the lookup table for quick reference.
Common Ounces to Grams Conversions
| Ounces | Grams |
|---|---|
| 1 oz | 28 g |
| 2 oz | 57 g |
| 3 oz | 85 g |
| 4 oz | 113 g |
| 8 oz (1/2 lb) | 227 g |
| 12 oz | 340 g |
| 16 oz (1 lb) | 454 g |
| 32 oz (2 lb) | 907 g |
Frequently Asked Questions
Is 'oz' the same as 'fluid oz'?
No - oz (avoirdupois ounce) is weight, fl oz (fluid ounce) is volume. 1 cup of water happens to weigh roughly 8 oz AND measure 8 fl oz, which causes confusion, but they're different units. For cooking, weight oz and fl oz only match for water and similar-density liquids.
Is 1 oz exactly 28 g?
Close - 28.35 g is more precise. The exact value is 28.3495 g per ounce. Most cooking applications round to 28 g without issue. Precision baking should use 28.35 or the full conversion.
Related Tools
Grams to Oz Converter
Convert grams to ounces with our free converter. Reference table of common grams to oz conversions included.
Cups to Grams Converter
Convert cups to grams for cooking and baking. Free converter with common cup to gram measurements for water and liquids.
Kg to Lbs Converter
Quickly convert kilograms to pounds with our free converter. Includes a reference table of common kg to lbs conversions.