Ounces to Grams
Convert ounces to grams (oz to g). 1 oz = 28.349523125 g. Use the calculator, formula and conversion table.
How to convert ounces to grams
Multiply the amount in ounces by 28.349523125 to get grams. The displayed factor and results are rounded to 12 significant digits.
g = oz × 28.349523125Worked example
1 oz = 28.349523125 g. Change the amount in the calculator above to use your own value.
Units and assumptions
Uses the international avoirdupois pound: one pound is exactly 0.45359237 kilograms. These are mass conversions; converting volume to mass needs the material’s density.
Calculator results use floating-point arithmetic and are rounded for display. The reference table below uses up to 12 significant digits.
Ounces to Grams table
| Ounces (oz) | Grams (g) |
|---|---|
| 0 | 0 |
| 1 | 28.349523125 |
| 5 | 141.747615625 |
| 10 | 283.49523125 |
| 25 | 708.738078125 |
| 100 | 2,834.9523125 |
| 1,000 | 28,349.523125 |
About this conversion
What is the formula for ounces to grams?
g = oz × 28.349523125. Multiply the amount in ounces by 28.349523125 to get grams. The displayed factor and results are rounded to 12 significant digits.
How do I convert back to ounces?
Use the grams to ounces calculator to reverse this conversion. You can also use Swap units in the calculator above.
Can I use a different pair of units?
Choose another unit in the calculator, or open the weight converter to browse all supported pairs.