Convert OZ to CUPS, Free
Type any OZ value and see the CUPS result instantly. No button press needed.
How to convert OZ to CUPS
One US cup equals exactly 8 US fluid ounces, so converting fluid ounces to cups is simply dividing by 8. For example, 16 fl oz equals 2 cups, 12 fl oz equals 1.5 cups, and 4 fl oz equals 0.5 cups. This is the conversion used in American cooking and baking when a recipe calls for cups but you are measuring with an ounce-marked container.
The converter handles decimal ounce values and returns the cup equivalent as a decimal. Common fractional results like 0.25 cups (a quarter cup) or 0.333 cups (a third cup) are displayed accurately so you know exactly what measuring cup to use.
Enter the number of fluid ounces
Type your fluid ounce value into the input field. Decimal values like 6.5 are accepted.
Read the result in cups
The equivalent in US cups appears instantly. The conversion divides the ounce value by exactly 8.
Copy the result
Click the copy icon to save the cup value to your clipboard for use in a recipe or calculation.
Frequently asked questions
How many fluid ounces are in a cup?
One US cup equals exactly 8 US fluid ounces. So to convert fluid ounces to cups, divide by 8.
Is this for fluid ounces or weight ounces?
This converter uses fluid ounces, which measure volume. Weight ounces measure mass and are a different unit. Fluid ounces and weight ounces are only numerically equal for water at a specific temperature.
How many ounces in a half cup?
A half cup is 4 fluid ounces. A quarter cup is 2 fluid ounces, and a third of a cup is approximately 2.67 fluid ounces.
Does this work for metric cups?
This converter uses US cups (236.588 mL). Metric cups used in Australia and Canada are 250 mL each. To convert US fluid ounces to metric cups, multiply by 0.118294 (because 1 fl oz = 29.5735 mL, and 1 metric cup = 250 mL).
Can I enter decimal values?
Yes. Decimal fluid ounce values like 10.5 or 0.5 are fully supported and the result will be a precise decimal cup value.