How to convert ounces to grams
- Type the weight in ounces in the Value field.
- See the result in grams, highlighted at the top.
- You also see the weight in pounds, kilograms and other units.
- Tap Copy result to take the equivalents with you.
The formula and examples
One ounce is 28.349523 grams. To convert, multiply the ounces by 28.35: 4 oz is 113.4 g, 8 oz is 226.8 g and 16 oz (one pound) is 453.59 g.
It's common in American recipes (chocolate, flour, butter) and on the labels of imported products. Careful: the fluid ounce (fl oz) measures volume, not weight; it's in the Volume category.
Good to know
- The avoirdupois ounce (28.3495 g) is used, not the troy ounce for precious metals (31.1035 g).
- The fluid ounce measures volume and isn't equal to the weight ounce.
- The result is rounded to 8 significant digits.
Frequently asked questions
How many grams is 8 ounces?
226.8 grams.
How many grams are in an ounce?
28.35 grams.
How many ounces is 100 grams?
3.53 ounces.
Is a gold ounce the same?
No: the troy ounce used for gold and silver weighs 31.1035 g.