WeightOunces to grams
1 ounce = 28.3495 grams.
1 ounce = 28.3495 grams. Multiply by 28.3495.
Common amounts
| oz | g |
|---|---|
| 1 oz | 28.3495 g |
| 5 oz | 141.75 g |
| 10 oz | 283.5 g |
| 25 oz | 708.74 g |
| 50 oz | 1,417.48 g |
| 100 oz | 2,834.95 g |
How it works
How to convert ounces to grams
g = oz × 28.3495.
Worked examples: 5 ounces = 141.7475 grams; 12 ounces = 340.194 grams.
About ounces and grams
The avoirdupois ounce, used for food and parcels, is exactly 28.349523125 g. It is a weight, not the fluid ounce. A gram is one thousandth of a kilogram.
When you'd convert ounces to grams
US recipes and postage weights: 4 oz of butter is about 113 g.
Common mistake: ounces of weight and fluid ounces of volume are different units; they only line up for water, roughly.
To go the other way, use the grams to ounces converter.
The converter on this page works out the answer in your browser as you type, and shows the factor so you can check it by hand.
Questions
How do I convert ounces to grams?
1 ounce = 28.3495 grams. Multiply by 28.3495.
What does the Converter : Units app add?
The same conversion, plus history, a constants library, and the rest of the unit categories on the phone.