/convert/cups-to-fluid-ounces/ Convert cups to fl oz instantly. Includes a reference table and formula. article cups to fl oz Converter — 247QuickTools ,{ "@context": "https://schema.org", "@type": "SpeakableSpecification", "cssSelector": [".tool-intro", ".info-gain-section"] }
👨‍🍳 Cooking & Baking

cups to fl oz Converter

Convert cups to fl oz instantly. Includes a reference table and formula.

Quick answer: To convert cups to fl oz, multiply by 8. For example, 1 cups = 8 fl oz. Use the calculator below for any value.
cups to fl oz
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Common conversions
cups fl oz
Formula:

How to convert cups to fl oz

1

Enter your value

Type the number of cups you want to convert into the left box. The result in fl oz appears instantly in the right box. You can also type into the right box to convert in the other direction.

2

Use the swap button

Click the ⇄ Swap button to reverse the conversion — fl oz to cups. Your current value carries across so you don't have to re-enter anything.

3

About cups and fl oz

cups and fl oz are both cooking and baking measurements. Use this converter to switch between them instantly.

💡 Did you know?

8 US fluid ounces = 1 US cup = 236.6 ml. The 'cup' is a US and Canadian measurement unit — not standard in UK recipes. A UK cup = 10 UK fl oz = 284 ml. When following US recipes in the UK, 1 US cup is close to ¼ litre (237 ml vs 250 ml metric cup).

📊 Common conversions at a glance
cups fl oz
0.125 1
0.25 2
0.5 4
0.75 6
1 8
1.25 10
Reviewed for 2026. cups ↔ fl oz conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.