US fluid ounces to US cups – US fluid ounce to US cup Converter
1 fl oz = 0.125 cup
Formula
cup = fl oz × 0.125
US fluid ounces to US cups conversion table
| US fluid ounces (fl oz) | US cups (cup) |
|---|---|
| 0.5 fl oz | 0.0625 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 |
| 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 |
| 1000 fl oz | 125 cup |
| 5000 fl oz | 625 cup |
US fluid ounces and US cups are both volume units. One US fluid ounce equals 0.125 US cups; enter any value above for an instant result, or use the table for common conversions.
Sanity-check examples
1 fl oz = 0.125 cup10 fl oz = 1.25 cup100 fl oz = 12.5 cup
Common pitfalls and look-alike units
Gallons differ: the US gallon ≈ 3.78541 L while the imperial gallon ≈ 4.546 L — about 20% apart, so check which one a recipe or fuel figure means. A US cup (~236.6 mL) is also not the metric 250 mL cup.
Frequently asked questions
How many US cups are in a US fluid ounce?
1 US fluid ounce (fl oz) equals 0.125 US cup (cup).
How do I convert US fluid ounces to US cups?
Multiply the US fluid ounce value by 0.125 to get US cup — for example, 2 US fluid ounces = 0.25 US cup.
How do I convert US cups back to US fluid ounces?
1 US cup equals 8 US fluid ounce. Use the swap button or the reverse conversion page linked on this page.