Convert oz to cups
1 fluid ounce equals 0.125 cups. To convert fluid ounces to cups, divide the number of fluid ounces by 8: for example, 10 fl oz is 1.25 cup. Ethical Tube's free oz to cups converter does the math as you type, and the chart below lists common values.
1 fl oz = 0.125 cup
- 1 fl oz
- 0.125 cup
- 1 cup
- 8 fl oz
- Formula
- cup = fl oz × 0.125
- Measures
- Volume
- Price
- Free
- Works offline
- Yes
Conversion chart
oz to cups chart
| Fluid ounces (fl oz) | Cups (cup) |
|---|---|
| 1 fl oz | 0.125 cup |
| 2 fl oz | 0.25 cup |
| 3 fl oz | 0.375 cup |
| 4 fl oz | 0.5 cup |
| 5 fl oz | 0.625 cup |
| 6 fl oz | 0.75 cup |
| 8 fl oz | 1 cup |
| 10 fl oz | 1.25 cup |
| 12 fl oz | 1.5 cup |
| 15 fl oz | 1.875 cup |
| 20 fl oz | 2.5 cup |
| 25 fl oz | 3.125 cup |
| 50 fl oz | 6.25 cup |
| 100 fl oz | 12.5 cup |
How it works
How to convert oz to cups
Know the formula
cup = fl oz × 0.125. In words: divide the number of fluid ounces by 8.
Work an example
10 fl oz → 1.25 cup. Round to two or three decimal places for everyday use.
Or type it in
Enter any value in the converter above and the answer appears instantly, in both directions.
Good to know
About volume units
- These are US customary measures: 1 US cup is 236.6 ml, 1 US fluid ounce is 29.57 ml, and 1 US gallon is 3.785 liters.
- UK (imperial) measures are different: an imperial fluid ounce is 28.41 ml and an imperial gallon is 4.546 liters.
- Nutrition labels in the US round a cup to 240 ml and a fluid ounce to 30 ml.
FAQ
Questions, answered
How many cups are in a fluid ounce?
There are 0.125 cups in 1 fluid ounce. To convert fluid ounces to cups, divide the number of fluid ounces by 8.
What is 10 oz in cups?
10 fluid ounces is 1.25 cups.
How do you convert cups back to oz?
Multiply the number of cups by 8. 1 cup is 8 fluid ounces.
Is this oz to cups converter free?
Yes. It's free and works in any browser, even offline once the page has loaded. The answer updates as you type, and nothing you enter is sent anywhere.
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