1 cup (US) = 8 fluid ounces (US)
All conversions
| Unit | Symbol | Value |
|---|
Quick answer
To convert Cups to OZ, multiply the number of cups (US) by 8. For example, 0.25 Cups = 2 OZ.
How to Convert Cups to OZ
The formula is fluid ounces (US) = cups (US) × 8. 1 cup (US) = 8 fluid ounces (US). Type any value in the converter above for an instant answer, or use the chart below for the most common values.
This page is preset for cup (US) to fluid ounce (US) conversions, but you can switch either list to any of the 76 units in the Volume Converter, or go the other way with the OZ to Cups converter.
Cups to OZ conversion chart
| Cups | OZ |
|---|---|
| 0.1 cup (US) | 0.8 fl oz (US) |
| 0.25 cup (US) | 2 fl oz (US) |
| 0.5 cup (US) | 4 fl oz (US) |
| 1 cup (US) | 8 fl oz (US) |
| 2 cup (US) | 16 fl oz (US) |
| 3 cup (US) | 24 fl oz (US) |
| 4 cup (US) | 32 fl oz (US) |
| 5 cup (US) | 40 fl oz (US) |
| 6 cup (US) | 48 fl oz (US) |
| 7 cup (US) | 56 fl oz (US) |
| 8 cup (US) | 64 fl oz (US) |
| 9 cup (US) | 72 fl oz (US) |
| 10 cup (US) | 80 fl oz (US) |
| 11 cup (US) | 88 fl oz (US) |
| 12 cup (US) | 96 fl oz (US) |
| 13 cup (US) | 104 fl oz (US) |
| 14 cup (US) | 112 fl oz (US) |
| 15 cup (US) | 120 fl oz (US) |
| 16 cup (US) | 128 fl oz (US) |
| 17 cup (US) | 136 fl oz (US) |
| 18 cup (US) | 144 fl oz (US) |
| 19 cup (US) | 152 fl oz (US) |
| 20 cup (US) | 160 fl oz (US) |
| 25 cup (US) | 200 fl oz (US) |
| 30 cup (US) | 240 fl oz (US) |
| 40 cup (US) | 320 fl oz (US) |
| 50 cup (US) | 400 fl oz (US) |
| 60 cup (US) | 480 fl oz (US) |
| 70 cup (US) | 560 fl oz (US) |
| 75 cup (US) | 600 fl oz (US) |
| 80 cup (US) | 640 fl oz (US) |
| 90 cup (US) | 720 fl oz (US) |
| 100 cup (US) | 800 fl oz (US) |
| 150 cup (US) | 1,200 fl oz (US) |
| 200 cup (US) | 1,600 fl oz (US) |
| 250 cup (US) | 2,000 fl oz (US) |
| 500 cup (US) | 4,000 fl oz (US) |
| 1,000 cup (US) | 8,000 fl oz (US) |
Common Cups to OZ conversions
- 1 cup (US) = 8 fluid ounces (US)
- 0.25 cup (US) = 2 fl oz (US)
- 0.5 cup (US) = 4 fl oz (US)
- 1 cup (US) = 8 fl oz (US)
- 2 cup (US) = 16 fl oz (US)
- 4 cup (US) = 32 fl oz (US)
Popular volume converters
How to Use the Cups to OZ Converter
- Type a value in the From box and choose its unit.
- Pick the unit you want in the To list — the result updates as you type.
- Use the swap button to reverse the conversion, or type in the To box to convert backwards.
- Check the All conversions table to see your value in every unit; click a row to make it the target.
Frequently Asked Questions
How many fluid ounces (US) are in a cup (US)?
There are 8 fluid ounces (US) in 1 cup (US). Going the other way, 1 fluid ounce (US) = 0.125 cups (US).
How do I convert Cups to OZ?
Use the formula fluid ounces (US) = cups (US) × 8. For example, 1 cup (US) = 8 fluid ounces (US). Or type the value in the converter above and the answer appears as you type.
What is the Cups to OZ formula?
fluid ounces (US) = cups (US) × 8 — the conversion factor is exact, using the international definitions of both units.
What is 0.25 Cups in OZ?
0.25 Cups = 2 OZ.
What is 0.5 Cups in OZ?
0.5 Cups = 4 OZ.
What is 1 Cups in OZ?
1 Cups = 8 OZ.
What is 2 Cups in OZ?
2 Cups = 16 OZ.
What is 4 Cups in OZ?
4 Cups = 32 OZ.
How do I convert OZ back to Cups?
Use the swap button in the converter above, or open our OZ to Cups converter. cups (US) = fluid ounces (US) ÷ 8.
Is this Cups to OZ converter accurate?
Yes. It uses exact unit definitions and double-precision maths, and you can show up to 15 significant digits. The table below is calculated with the same formula.
Can I convert Cups to other volume units?
Yes — pick any unit in the From and To lists above, or open the full Volume Converter, which handles 76 volume units.
Is the Cups to OZ converter free?
Yes, it is free with no sign-up, and every conversion runs in your browser so nothing is sent to a server.