US cup to US fluid ounce Converter
1 cup = 8 fl oz — convert instantly with formula and table.
Enter any number above and the result updates as you type. Everything runs locally in your browser, so it is instant and private.
Quick answer: one us cup equals 8 US fluid ounces. So to convert US cups to US fluid ounces, multiply by 8.
How to convert US cups to US fluid ounces
US fluid ounces = US cups × 8
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.
The US fluid ounce is about 29.57 ml — slightly larger than the UK fluid ounce. Eight fluid ounces make a US cup.
US cup to US fluid ounce conversion table
| US cup (cup) | US fluid ounce (fl oz) |
|---|---|
| 0.01 cup | 0.08 fl oz |
| 0.1 cup | 0.8 fl oz |
| 0.25 cup | 2 fl oz |
| 0.4 cup | 3.2 fl oz |
| 0.75 cup | 6 fl oz |
| 1.25 cup | 10 fl oz |
| 1.75 cup | 14 fl oz |
| 2.5 cup | 20 fl oz |
| 3.5 cup | 28 fl oz |
| 4.5 cup | 36 fl oz |
| 6 cup | 48 fl oz |
| 8 cup | 64 fl oz |
| 10 cup | 80 fl oz |
| 12 cup | 96 fl oz |
| 14 cup | 112 fl oz |
| 16 cup | 128 fl oz |
| 18 cup | 144 fl oz |
| 20 cup | 160 fl oz |
| 24 cup | 192 fl oz |
| 26 cup | 208 fl oz |
| 30 cup | 240 fl oz |
| 35 cup | 280 fl oz |
| 45 cup | 360 fl oz |
| 55 cup | 440 fl oz |
| 65 cup | 520 fl oz |
| 75 cup | 600 fl oz |
| 85 cup | 680 fl oz |
| 95 cup | 760 fl oz |
| 110 cup | 880 fl oz |
| 125 cup | 1,000 fl oz |
| 175 cup | 1,400 fl oz |
| 250 cup | 2,000 fl oz |
| 350 cup | 2,800 fl oz |
| 450 cup | 3,600 fl oz |
| 600 cup | 4,800 fl oz |
| 750 cup | 6,000 fl oz |
| 900 cup | 7,200 fl oz |
| 1,500 cup | 12,000 fl oz |
| 2,500 cup | 20,000 fl oz |
| 10,000 cup | 80,000 fl oz |
Need the opposite direction? Use the US fluid ounce to US cup converter, or read our complete guide to volume conversions for every formula in one place.
Frequently asked questions
How many US fluid ounces are in one us cup?
One us cup equals 8 US fluid ounces. Multiply any us cup value by 8 to get US fluid ounces.
What is 10 US cups in US fluid ounces?
10 US cups equal 80 US fluid ounces (10 × 8).
Is the us cup to us fluid ounce conversion exact?
The conversion factor used here (8) 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.