Convert ounces to grams
Enter a value in ounces to convert it to grams.
ounces to grams reference
| ounces | grams |
|---|---|
| 1 oz | 28.3495 g |
| 2 oz | 56.699 g |
| 5 oz | 141.7476 g |
| 10 oz | 283.4952 g |
| 25 oz | 708.7381 g |
| 50 oz | 1417.4762 g |
| 100 oz | 2834.9523 g |
The conversion factor
One ounce is 28.34952313 grams. So to convert, multiply your figure in ounces by 28.34952313. To go the other way, multiply grams by 0.03527396, or use the grams to ounces converter.
Doing it in your head
For a quick estimate, round the factor: roughly "times 28". Use the exact converter above when the number matters.
Where this conversion comes up
Recipes, shipping and luggage limits, body weight, and nutrition labels.
See the common unit conversions cheat sheet for the factors worth memorising.
Related tools
Frequently asked questions
How many grams are in a ounce?
1 ounce = 28.349523 grams.
What is the formula to convert ounces to grams?
Multiply the number of ounces by 28.34952313. To go back the other way, multiply grams by 0.03527396.
What is 10 ounces in grams?
10 ounces = 283.4952 grams. The reference table below lists more common values.
Is this converter accurate?
It uses the internationally defined conversion factors and computes at full floating-point precision, then rounds only the displayed result. For everyday purposes it is exact; for legal, engineering or scientific work, confirm the required number of significant figures.
Does it work offline?
Yes. The conversion runs in your browser with no server call, so it keeps working with no connection, and nothing you enter is uploaded.
Last reviewed: September 2026. Figures and formulas are checked against their published sources; see the site's data notes.