Convert Ounce to Gram
Turn Ounces into Grams in an instant. Type a value below to get an accurate oz → g result, with the formula and a quick-reference table.
1 oz = 28.349523 g
Quick answer: 1 Ounce = 28.349523 Gram
Ounce to Gram conversion table
| Ounce (oz) | Gram (g) |
|---|---|
| 1 oz | 28.349523 g |
| 2 oz | 56.699046 g |
| 5 oz | 141.74762 g |
| 10 oz | 283.49523 g |
| 20 oz | 566.99046 g |
| 50 oz | 1,417.4762 g |
| 100 oz | 2,834.9523 g |
| 500 oz | 14,174.762 g |
| 1,000 oz | 28,349.523 g |
How to convert Ounce to Gram
To convert Ounces to Grams, multiply the value by 28.349523.
- Take your measurement in Ounces.
- Multiply it by 28.349523 — the number of Grams in one Ounce.
- The result is the same amount, expressed in Grams.
To go the other way, multiply Grams by 0.035273962 — or simply divide by 28.349523.
For example, one pound is about 16 oz, which is 453.59237 g.
About Ounce and Gram
An ounce is an imperial unit of mass equal to about 28.35 grams, or one-sixteenth of a pound. It is common in the United States for food packaging, postage and cooking.
A gram is the everyday metric unit of mass, one-thousandth of a kilogram. It is used for food portions, cooking ingredients and postage.
The Ounce is a imperial / US customary unit while the Gram comes from the metric system — which is exactly why this conversion comes up so often. One Ounce equals 28.349523 Grams.
Other weight & mass conversions
Frequently asked questions
How many Grams are in a Ounce?
1 Ounce equals 28.349523 Gram (oz → g). To convert any amount, multiply the number of Ounces by 28.349523.
How do I convert Ounce to Gram?
Enter the number of Ounces in the converter above and read the result in Grams. It applies the exact oz → g factor instantly, with full precision.
Is the Ounce to Gram converter free?
Yes — it is completely free and unlimited, needs no sign-up, and runs right in your browser, so it is instant and private.
Is the conversion accurate?
Yes. It uses the internationally defined weight & mass factors and full floating-point precision, then rounds the display to a clean, readable number.