How to convert ounces to grams
To convert ounces to grams, multiply by 28.349523125. Weight and mass conversions matter for cooking, shipping, fitness tracking, medicine and trade.
Ounce to Gram conversion table
| Ounce (oz) | Gram (g) |
|---|---|
| 0.1 oz | 2.8349523125 g |
| 0.5 oz | 14.1747615625 g |
| 1 oz | 28.349523125 g |
| 2 oz | 56.69904625 g |
| 3 oz | 85.048569375 g |
| 4 oz | 113.3980925 g |
| 5 oz | 141.747615625 g |
| 10 oz | 283.49523125 g |
| 20 oz | 566.9904625 g |
| 25 oz | 708.738078125 g |
| 50 oz | 1,417.47615625 g |
| 100 oz | 2,834.9523125 g |
| 500 oz | 14,174.7615625 g |
| 1,000 oz | 28,349.523125 g |
About the units
Ounce (oz)
An avoirdupois ounce is 1/16 of a pound, exactly 28.349523125 grams, used for food portions and postage.
Gram (g)
A gram is one thousandth of a kilogram and the everyday metric unit for food and small items.
How to use this converter
- Type the number of ounces (oz) in the input box.
- The result in grams appears instantly — no button needed.
- See the same value in every other weight unit just below.
- Use “Swap units” to convert grams back to ounces.
Tips for better results
- Double-check which system a unit belongs to (for example US vs UK gallons).
- Use the swap button to convert in the opposite direction instantly.
- Bookmark the conversions you use most — each pair has its own page.
Frequently asked questions
How many grams are in one ounce?
One ounce equals 28.349523125 grams. 28.349523125 is the exact factor used by this converter.
How do I convert ounces to grams?
Multiply the value in ounces by 28.349523125. To go the other way, multiply grams by 0.0352739619496.
What is 10 oz in g?
10 oz = 283.49523125 g. Also, 5 oz = 141.747615625 g and 100 oz = 2,834.9523125 g.
What is the difference between a ounce and a gram?
An avoirdupois ounce is 1/16 of a pound, exactly 28.349523125 grams, used for food portions and postage. A gram is one thousandth of a kilogram and the everyday metric unit for food and small items.
Is this tool free and private?
Yes — the Ounce to Gram is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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