Convert US fluid ounces to US cups
1 US fluid ounce = 0.125 US cups · cup = fl oz ÷ 8
When you need this conversion
This conversion goes from US fluid ounces, used for drinks and recipe liquids, to US cups, the volume-based measure central to American recipes. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.
US fluid ounces to US cups conversion table
| US fluid ounces (fl oz) | US cups (cup) |
|---|---|
| 1 fl oz | 0.125 cup |
| 2 fl oz | 0.25 cup |
| 3 fl oz | 0.375 cup |
| 5 fl oz | 0.625 cup |
| 10 fl oz | 1.25 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 |
| 75 fl oz | 9.375 cup |
| 100 fl oz | 12.5 cup |
| 250 fl oz | 31.25 cup |
| 500 fl oz | 62.5 cup |
| 1,000 fl oz | 125 cup |
The formula
cup = fl oz ÷ 8Because both units measure volume, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.
Convert the other way
US cups to US fluid ounces →Related volume conversions
- Milliliters to US cups
- US fluid ounces to milliliters
- Milliliters to US fluid ounces
- Liters to cubic meters
- Liters to US gallons
- Cubic meters to liters
- Cubic meters to cubic feet
- Cubic feet to cubic meters
- US gallons to liters
- US cups to milliliters
- Liters to US cups
- Cubic meters to US cups
Frequently asked questions
- How many US cups are in a US fluid ounce?
- There are 0.125 US cups in 1 US fluid ounce. The formula is cup = fl oz ÷ 8.
- How do you convert US fluid ounces to US cups?
- Use the formula cup = fl oz ÷ 8. For example, 10 US fluid ounces equals 1.25 US cups.
- Is the US fluid ounces to US cups conversion exact?
- Yes. US fluid ounces and US cups are both units of volume, related by an exact defined factor. Displayed results are rounded for readability.
- What is fl oz short for?
- fl oz is the standard symbol for US fluid ounce. cup is the symbol for US cup.