/convert/fluid-ounces-to-cups/ Convert fl oz to cups instantly. Includes a reference table and formula. article fl oz to cups Converter — 247QuickTools
👨‍🍳 Cooking & Baking

fl oz to cups Converter

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

Quick answer: To convert fl oz to cups, multiply by 0.125. For example, 1 fl oz = 0.125 cups. Use the calculator below for any value.
fl oz to cups
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Common conversions
fl oz cups
Formula:

How to convert fl oz to cups

1

Enter your value

Type the number of fl oz you want to convert into the left box. The result in cups 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 — cups to fl oz. Your current value carries across so you don't have to re-enter anything.

3

About fl oz and cups

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

💡 Did you know?

1 US cup = 8 US fl oz. 1 UK cup = 10 UK fl oz (but UK rarely uses cups). The fluid ounce itself differs: US fl oz = 29.57 ml, UK fl oz = 28.41 ml. Most online recipes assume US fl oz.

📊 Common conversions at a glance
fl oz cups
1 0.125
2 0.25
4 0.5
6 0.75
8 1
10 1.25
Reviewed for 2026. fl oz ↔ cups 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.

Frequently asked questions

How do I convert fl oz to cups?

To convert fl oz to cups, multiply by 0.125. Or use the calculator above for instant results.

How many cups are in 1 fl oz?

1 fl oz equals 0.125 cups.

Is the fl oz to cups converter free?

Yes, the fl oz to cups converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.