US fluid ounce to US cup Converter
1 fl oz = 0.125 cup — convert instantly with formula and table.
Use the converter above for an immediate result — it recalculates on every keystroke and works offline once the page has loaded.
Quick answer: one us fluid ounce equals 0.125 US cups. So to convert US fluid ounces to US cups, multiply by 0.125.
How to convert US fluid ounces to US cups
US cups = US fluid ounces × 0.125
The US fluid ounce is about 29.57 ml — slightly larger than the UK fluid ounce. Eight fluid ounces make a US cup.
The US cup is half a US pint — 236.59 ml. American recipes measure almost everything in cups, which is why cup conversions are among the most searched on the web.
US fluid ounce to US cup conversion table
| US fluid ounce (fl oz) | US cup (cup) |
|---|---|
| 0.01 fl oz | 0.00125 cup |
| 0.1 fl oz | 0.0125 cup |
| 0.25 fl oz | 0.03125 cup |
| 0.4 fl oz | 0.05 cup |
| 0.75 fl oz | 0.09375 cup |
| 1.25 fl oz | 0.15625 cup |
| 1.75 fl oz | 0.21875 cup |
| 2.5 fl oz | 0.3125 cup |
| 3.5 fl oz | 0.4375 cup |
| 4.5 fl oz | 0.5625 cup |
| 6 fl oz | 0.75 cup |
| 8 fl oz | 1 cup |
| 10 fl oz | 1.25 cup |
| 12 fl oz | 1.5 cup |
| 14 fl oz | 1.75 cup |
| 16 fl oz | 2 cup |
| 18 fl oz | 2.25 cup |
| 20 fl oz | 2.5 cup |
| 24 fl oz | 3 cup |
| 26 fl oz | 3.25 cup |
| 30 fl oz | 3.75 cup |
| 35 fl oz | 4.375 cup |
| 45 fl oz | 5.625 cup |
| 55 fl oz | 6.875 cup |
| 65 fl oz | 8.125 cup |
| 75 fl oz | 9.375 cup |
| 85 fl oz | 10.625 cup |
| 95 fl oz | 11.875 cup |
| 110 fl oz | 13.75 cup |
| 125 fl oz | 15.625 cup |
| 175 fl oz | 21.875 cup |
| 250 fl oz | 31.25 cup |
| 350 fl oz | 43.75 cup |
| 450 fl oz | 56.25 cup |
| 600 fl oz | 75 cup |
| 750 fl oz | 93.75 cup |
| 900 fl oz | 112.5 cup |
| 1,500 fl oz | 187.5 cup |
| 2,500 fl oz | 312.5 cup |
| 10,000 fl oz | 1,250 cup |
Need the opposite direction? Use the US cup to US fluid ounce converter, or read our complete guide to volume conversions for every formula in one place.
Frequently asked questions
How many US cups are in one us fluid ounce?
One us fluid ounce equals 0.125 US cups. Multiply any us fluid ounce value by 0.125 to get US cups.
What is 10 US fluid ounces in US cups?
10 US fluid ounces equal 1.25 US cups (10 × 0.125).
Is the us fluid ounce to us cup conversion exact?
The conversion factor used here (0.125) is based on the internationally agreed definitions of both units, so results are exact up to rounding of the final decimal places.
Is my data stored when I use this converter?
No. The conversion runs entirely in your browser with JavaScript — nothing you type is sent to a server, logged or stored.