Ounces to Grams Converter
Convert ounces to grams and grams back to ounces as you type.
Converts live in your browser. Nothing you type is uploaded.
How to use this tool
This oz to grams converter has two linked inputs. Type a number into the ounces box to convert ounces to grams, or type into the grams box to go the other way. The opposite field updates the moment you type, so there is no button to press. Both boxes accept decimals, which makes it easy to convert ounces to grams for partial amounts like 1.5 oz or 0.75 oz.
How it works
The conversion uses the international avoirdupois ounce, where one ounce equals exactly 28.3495 grams. This is the standard weight unit used on food labels and recipes in the United States, so it is the right figure for baking mass conversion and everyday kitchen weights. Note that this is a mass conversion, not a fluid ounce (volume) conversion.
A real example
Say a recipe lists 8 ounces of flour and your scale only reads in grams. Multiply 8 by 28.3495 to get 226.796 grams, which rounds to about 227 g. Going the other way, if you weighed 100 grams of butter and want to know the ounces, divide 100 by 28.3495 to get roughly 3.53 oz.
Common baking amounts
Here are quick reference values for amounts that come up often when you convert ounces to g weight in the kitchen.
| Ounces (oz) | Grams (g) |
|---|---|
| 0.5 oz | 14.17 g |
| 1 oz | 28.35 g |
| 2 oz | 56.70 g |
| 3 oz | 85.05 g |
| 4 oz | 113.40 g |
| 6 oz | 170.10 g |
| 8 oz | 226.80 g |
| 12 oz | 340.19 g |
| 16 oz (1 lb) | 453.59 g |
Common questions
How many grams are in one ounce?
One avoirdupois ounce equals exactly 28.3495 grams. That is the figure this converter uses for every ounces to grams calculation.
Is this for weight or for fluid ounces?
This tool converts weight, also called mass. Fluid ounces measure volume and depend on the liquid, so they are a different conversion and are not covered here.
Can I convert grams back to ounces?
Yes. Type a value into the grams box and the ounces field updates automatically, so the converter works both ways.
Why is this useful for baking?
Recipes from different countries mix ounces and grams. A reliable baking mass conversion lets you weigh ingredients accurately on whatever scale you own.
How many ounces are in a pound?
There are 16 ounces in one pound, which is about 453.59 grams. You can confirm this by entering 16 in the ounces box.