Ounces to grams (oz to g)
Convert ounces to grams. For mass, 1 oz equals 28.34952313 g.
Converter
oz to g conversion table
| Ounces | Grams |
|---|---|
| 1 oz | 28.349523 g |
| 2 oz | 56.699046 g |
| 5 oz | 141.74762 g |
| 10 oz | 283.49523 g |
| 25 oz | 708.73808 g |
| 50 oz | 1417.4762 g |
| 100 oz | 2834.9523 g |
| 1000 oz | 28349.523 g |
Formula
g = oz × 28.34952313
Worked example
25 oz × 28.34952313 = 708.7380781 g
Popular conversion examples
Choose an example to open this converter with the value filled in. These are useful examples, not a claim about search rankings.
- 1 oz to g = 28.3495 g
- 5 oz to g = 141.748 g
- 100 oz to g = 2834.95 g
- 16 oz to g = 453.592 g
- 200 g to oz = 7.05479 oz
- 50 g to oz = 1.7637 oz
About ounces and grams
Ounce (oz)
The avoirdupois ounce is exactly 1/16 of a pound (28.349523125 grams). It is used for food, postage and small goods in the US and UK. It measures mass, not fluid volume.
Gram (g)
A gram is one thousandth of a kilogram. It is used for cooking, postage and small product weights.
Both are units of mass; the base unit used internally is kg.
Notes
- Ounces and pounds are avoirdupois units of mass (1 lb = 0.45359237 kg exactly).
- The stone is the British unit of 14 avoirdupois pounds (6.35029318 kg). The troy ounce (31.1034768 g, used for precious metals) is a different unit from the avoirdupois ounce, and the grain is exactly 1/7000 of a pound (64.79891 mg).
- Mass cannot be negative.
oz to g FAQs
How do I convert ounces to grams?
Multiply the number of ounces by 28.34952313 to get grams. For example, 25 oz × 28.34952313 = 708.738 g.
How many grams are in one ounce?
1 oz = 28.34952313 g and 1 g = 0.03527396195 oz. To go the other way, use the grams to ounces converter.
How many grams are in 4 ounces?
4 oz = 113.398 g, rounded to 6 significant digits. Change the value in the converter above for any other amount.
How many grams are in 6 ounces?
6 oz = 170.097 g, rounded to 6 significant digits.
Is the oz to g conversion exact?
Yes. The factor 28.349523125 follows directly from the unit definitions (The avoirdupois ounce is exactly 1/16 of a pound (28.349523125 grams); a gram is one thousandth of a kilogram), so the only rounding is in the digits you choose to display.
What is the difference between ounces and grams?
The avoirdupois ounce is exactly 1/16 of a pound (28.349523125 grams). It is used for food, postage and small goods in the US and UK. It measures mass, not fluid volume. A gram is one thousandth of a kilogram. It is used for cooking, postage and small product weights.
Does this convert weight or mass?
Strictly it converts mass. The pound, ounce and stone here are units of mass, which is what scales and everyday “weight” refer to on Earth. Pound-force and other units of force are different and are not handled by this converter.
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