Volume

US customary cup to US fluid ounce

Convert US customary cup (US cup) to US fluid ounce (US fl oz).

Result8 US fluid ounce (US fl oz)

Formula and method

result = value × (0.2365882365 ÷ 0.0295735295625).

The source value is converted to the catalog’s canonical unit, then expressed in the target unit.

Worked examples

These examples use the same conversion engine as the calculator.

  • 1 US cup8 US fl oz
  • 5 US cup40 US fl oz
  • 10 US cup80 US fl oz

Common US customary cup values

US customary cup to US fluid ounce reference values
US customary cup (US cup)US fluid ounce (US fl oz)
18
216
540
1080
25200
50400
100800
2502,000
5004,000
1,0008,000

How to convert US customary cup to US fluid ounce

  1. Enter a value in US customary cup in the converter above.
  2. The calculator converts it using the catalog’s linear method.
  3. Choose the decimal precision you need,then copy the displayed result if useful.

Frequently asked questions

What is the formula for US customary cup to US fluid ounce?

result = value × (0.2365882365 ÷ 0.0295735295625). The source value is converted to the catalog’s canonical unit, then expressed in the target unit.

Can I convert US fluid ounce back to US customary cup?

Yes. Use Swap Units when the reverse pair is available in the catalog. The page URL changes to the reverse conversion and the entered value is retained.

Why can a value be rejected?

The engine rejects non-finite values and negative values for units that do not allow them.

How are displayed decimal places chosen?

Use the Decimal precision selector above the result. Very large or very small results switch to scientific notation when that makes the value easier to read.