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Convert Imperial Fluid Ounces to US Cups

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Measurement

Volume Converter
10 sig. figures
Formula1 imp fl oz ร— 0.1200949926 = 0.1200949926 US cup
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About Volume Conversions

Volume trips people up because US customary and imperial units share names but not sizes. A US gallon (3.785 liters) runs about 17% smaller than an imperial gallon (4.546 liters), and the gap carries down into pints, quarts, and fluid ounces. Cooking is where it bites: a British recipe's pint of milk is 568 ml, an American pint only 473 ml. Science sidesteps the mess with metric volume, where 1 mL equals exactly 1 cmยณ. US and imperial variants stay separate below, with exact conversion chains holding precision across the swap.

Quick Conversions

Imperial Fluid OuncesUS Cups
1 imp fl oz0.120095 US cup
2 imp fl oz0.24019 US cup
5 imp fl oz0.600475 US cup
10 imp fl oz1.20095 US cup
25 imp fl oz3.00237 US cup
50 imp fl oz6.00475 US cup
100 imp fl oz12.0095 US cup
250 imp fl oz30.0237 US cup
500 imp fl oz60.0475 US cup
1000 imp fl oz120.095 US cup
Unit NameSymbolPer 1 Imperial Fluid Ounce
Cubic Centimetercmยณ28.4131
Cubic Footftยณ0.0010034
Cubic Inchinยณ1.73387
Cubic Metermยณ0.0000284131
Imperial Fluid Ounceimp fl oz1
Imperial Gallonimp gal0.00625
Imperial Pintimp pt0.05
LiterL0.0284131
MillilitermL28.4131
US CupUS cup0.120095
US Fluid OunceUS fl oz0.96076
US GallonUS gal0.00750594
US PintUS pt0.0600475
US QuartUS qt0.0300237
US TablespoonUS tbsp1.92152
US TeaspoonUS tsp5.76456

Frequently Asked Questions

How do I convert Imperial Fluid Ounces to US Cups?

To convert Imperial Fluid Ounces to US Cups, use the conversion where 1 Imperial Fluid Ounce (imp fl oz) = 0.120095 US Cups (US cup). For example, 1 Imperial Fluid Ounce = 0.120095 US Cups.

What are common Imperial Fluid Ounce to US Cup conversions?

Here are common conversions: 1 Imperial Fluid Ounces = 0.120095 US Cups, 5 Imperial Fluid Ounces = 0.600475 US Cups, 10 Imperial Fluid Ounces = 1.20095 US Cups, 25 Imperial Fluid Ounces = 3.00237 US Cups, 50 Imperial Fluid Ounces = 6.00475 US Cups, 100 Imperial Fluid Ounces = 12.0095 US Cups.

When would I need to convert Imperial Fluid Ounces to US Cups?

Volume conversions come up when scaling recipes between metric (milliliters, liters) and US customary units (cups, fluid ounces), calculating fuel tank capacities across regions, and in chemistry and manufacturing where a precise liquid measurement decides the outcome.

How precise are the conversions?

All conversions use exact factors verified against NIST and ISO standards with up to 10 significant figures of precision. Results are calculated using IEEE 754 double-precision arithmetic, which provides approximately 15-17 significant digits. For temperature and other non-linear conversions, exact formulas are used rather than approximations.

Sources

Read our full methodology โ†’