Imperial fluid ounce to US cup Converter
Type a value — the answer appears instantly. 1 fl oz (UK) = 0.12009 cup.
Reviewed by the OmniCalc teamMethod verified 2026-07-01
0.12009 US cups
= 0.0284131 L= 28.4131 ml
equals 0.12009 US cupsFormula: cup = fl oz (UK) × 0.12009499
Imperial fluid ounce to US cup formula
cup = fl oz (UK) × 0.12009499
Convert 5 imperial fluid ounces to US cups
- Start with 5 imperial fluid ounces.
- Multiply by the conversion factor: 5 × 0.120095 = 0.60047.
- So 5 fl oz (UK) = 0.60047 cup.
Imperial fluid ounce to US cup conversion table
| Imperial fluid ounces (fl oz (UK)) | US cups (cup) |
|---|---|
| 0.01 fl oz (UK) | 0.0012009 cup |
| 0.1 fl oz (UK) | 0.012009 cup |
| 0.25 fl oz (UK) | 0.030024 cup |
| 0.5 fl oz (UK) | 0.060047 cup |
| 1 fl oz (UK) | 0.12009 cup |
| 2 fl oz (UK) | 0.24019 cup |
| 3 fl oz (UK) | 0.36028 cup |
| 4 fl oz (UK) | 0.48038 cup |
| 5 fl oz (UK) | 0.60047 cup |
| 6 fl oz (UK) | 0.72057 cup |
| 7 fl oz (UK) | 0.84066 cup |
| 8 fl oz (UK) | 0.96076 cup |
| 9 fl oz (UK) | 1.0809 cup |
| 10 fl oz (UK) | 1.2009 cup |
| 15 fl oz (UK) | 1.8014 cup |
| 20 fl oz (UK) | 2.4019 cup |
| 25 fl oz (UK) | 3.0024 cup |
| 30 fl oz (UK) | 3.6028 cup |
| 40 fl oz (UK) | 4.8038 cup |
| 50 fl oz (UK) | 6.0047 cup |
| 75 fl oz (UK) | 9.0071 cup |
| 100 fl oz (UK) | 12.009 cup |
| 250 fl oz (UK) | 30.024 cup |
| 500 fl oz (UK) | 60.047 cup |
| 1,000 fl oz (UK) | 120.09 cup |
| 5,000 fl oz (UK) | 600.47 cup |
| 10,000 fl oz (UK) | 1,200.9 cup |
Unit definitions
What is a imperial fluid ounce?
The imperial (UK) fluid ounce is one 160th of an imperial gallon, about 28.41 millilitres. It is used in the United Kingdom and Commonwealth countries. It is slightly smaller than the US fluid ounce.
What is a US cup?
The US customary cup is one sixteenth of a US gallon, about 236.59 millilitres. It is the standard volume measure in American home cooking and baking. It equals eight US fluid ounces.
Frequently asked questions
How many US cups are in one imperial fluid ounce?
One imperial fluid ounce equals 0.12009 US cups (1 fl oz (UK) = 0.12009 cup).
How do I convert imperial fluid ounces to US cups?
Multiply the value in imperial fluid ounces by 0.120095. For example, 10 fl oz (UK) × 0.120095 = 1.2009 cup.
Which is bigger — a imperial fluid ounce or a US cup?
A US cup is bigger: one US cup contains 8.3267 imperial fluid ounces.
Is this imperial fluid ounce to US cup converter free?
Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.
Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.