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1 cups to fl-oz

Updated July 2026

1 cups equals 8 fl oz

1 US cup = 8 fl oz. That is how many US fluid ounces there are in 1 US cup. Enter any value in the free volume converter to convert US cups to US fluid ounces (and every other unit) instantly — it runs privately in your browser.

Formula: Multiply by 8 — 1 US cup = 8 US fluid ounces. So 1 × 8 = 8 fl oz.

cups to fl-oz conversion table

US cup (cup)US fluid ounces (fl oz)
0.25 cup2 fl oz
0.5 cup4 fl oz
0.75 cup6 fl oz
1 cup8 fl oz
1.25 cup10 fl oz
1.5 cup12 fl oz
1.75 cup14 fl oz

Frequently asked questions

How many US fluid ounces is 1 US cup?
1 US cup is 8 US fluid ounces. Multiply cups by 8 to get fl-oz.
What is 1 cups to fl-oz?
1 US cup = 8 fl oz.
How do you convert cups to fl-oz?
Multiply by 8 — 1 US cup = 8 US fluid ounces. So 1 × 8 = 8 fl oz.

Other cups to fl-oz conversions

Convert 1 cups to other units