Ounces to Grams Converter
Convert any weight from ounces to grams using the exact conversion factor: 1 avoirdupois ounce = 28.349523125 grams. This converter also shows kilograms, pounds, and milligrams for complete reference.
The ounce (oz) is a unit of weight in the imperial and US customary systems, while the gram (g) is the base unit of mass in the metric system. The avoirdupois ounce (the standard ounce for weight) is defined as exactly 28.349523125 grams (derived from 1 lb = 453.59237 g, divided by 16). Note: this is different from the troy ounce (31.1035 g) used for precious metals.
Common Ounce to Gram Conversions:
| Ounces | Grams | Context |
|---|---|---|
| 1 oz | 28.350 g | Base conversion |
| 2 oz | 56.699 g | Small portion |
| 4 oz | 113.398 g | Quarter pound |
| 6 oz | 170.097 g | Steak portion |
| 8 oz | 226.796 g | Half pound / 1 cup water |
| 12 oz | 340.194 g | Soda can |
| 16 oz | 453.592 g | One pound |
| 32 oz | 907.185 g | Two pounds |
Cooking Tip: When following recipes from different countries, precision matters for baking. A kitchen scale that reads in both ounces and grams is invaluable. As a rough shortcut, multiply ounces by 28 for a quick gram estimate.