How to convert ounces to grams
To convert ounces to grams, multiply by 28.349523125. One ounce is about 28.35 grams, a conversion used for recipes, nutrition labels, postage and portion sizes.
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.
When you’ll use the ounce to gram conversion
A US recipe calls for 8 oz of cream cheese and your scale is metric. Converting gives about 227 g.
A nutrition label lists a serving as 1.5 oz. Converting gives about 43 g for tracking apps.
💡 For a quick estimate in your head, multiply by about 28 (the exact factor is 28.349523125).
Watch out for these mix-ups
- Measuring a weight in ounces with a liquid measuring jug.
- Using troy ounces, meant for precious metals, for food.
- Rounding small baking amounts such as yeast or baking soda.
- Including the container’s weight when weighing ingredients.
Tips for better results
- Use 28 g per ounce for quick estimates and the exact factor when baking.
- Tare the scale with the bowl on it before adding ingredients.
- Check whether a recipe’s ounces mean weight or volume.
💡 Practical tip: A US stick of butter is 4 oz, or about 113 grams.
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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