Formula
Convert ounces to grams with:
g = oz * 28.3495
Example
1 oz = 28.35 g
ounces to grams table
Questions
How many grams are in a ounce?
One ounce is 28.3495 grams. Enter any value above to convert instantly.
What is the formula to convert ounces to grams?
Use g = oz * 28.3495. The calculator applies this for every value you type.
Is this conversion exact?
Yes — it uses the standard conversion factor (g = oz * 28.3495), rounded to 6 significant digits for display.