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UK Fluid Ounces to US Fluid Ounces (imp fl oz to fl oz) Converter

1 UK fluid ounce (imp fl oz) = 0.96076 US fluid ounces (fl oz). To convert UK fluid ounces to US fluid ounces, multiply by 0.96076: 25 imp fl oz × 0.96076 = 24.019 fl oz.

1 imp fl oz = 0.9607599392 fl oz
Convert the other way: US Fluid Ounces to UK Fluid Ounces

Quick facts

How to convert UK fluid ounces to US fluid ounces

  1. Write down the number of UK fluid ounces you have.
  2. Multiply it by 0.96076 (the number of US fluid ounces in one UK fluid ounce).
  3. Check the answer: it should be smaller than the number you started with.
fl oz = imp fl oz × 0.96076

Worked example: 25 imp fl oz × 0.96076 = 24.019 fl oz.

To convert US fluid ounces back to UK fluid ounces, multiply by 1.04084, or divide by 0.96076.

Source: NIST Handbook 44, Appendix C, and NIST SP 811 (US customary volume units).

UK Fluid Ounces to US Fluid Ounces conversion table

UK Fluid Ounces to US Fluid Ounces conversion table
UK Fluid Ounces [imp fl oz]US Fluid Ounces [fl oz]
0.01 imp fl oz0.0096075994 fl oz
0.1 imp fl oz0.0960759939 fl oz
1 imp fl oz0.9607599392 fl oz
2 imp fl oz1.9215198784 fl oz
3 imp fl oz2.8822798176 fl oz
5 imp fl oz4.8037996959 fl oz
10 imp fl oz9.6075993919 fl oz
20 imp fl oz19.2151987837 fl oz
50 imp fl oz48.0379969593 fl oz
100 imp fl oz96.0759939186 fl oz
1000 imp fl oz960.7599391856 fl oz

imp fl oz to fl oz chart from 1 to 100

US Fluid Ounces to UK Fluid Ounces conversion table

US Fluid Ounces to UK Fluid Ounces conversion table
US Fluid Ounces [fl oz]UK Fluid Ounces [imp fl oz]
0.01 fl oz0.0104084273 imp fl oz
0.1 fl oz0.1040842732 imp fl oz
1 fl oz1.0408427321 imp fl oz
2 fl oz2.0816854642 imp fl oz
3 fl oz3.1225281963 imp fl oz
5 fl oz5.2042136605 imp fl oz
10 fl oz10.4084273211 imp fl oz
20 fl oz20.8168546421 imp fl oz
50 fl oz52.0421366053 imp fl oz
100 fl oz104.0842732106 imp fl oz
1000 fl oz1040.8427321061 imp fl oz

UK Fluid Ounces vs US Fluid Ounces

UK Fluid OunceUS Fluid Ounce
Symbolimp fl ozfl oz
Equals1 imp fl oz = 0.96076 fl oz1 fl oz = 1.04084 imp fl oz

What is a UK fluid ounce?

A UK imperial unit equal to 1/20 of an imperial pint (exactly 28.4130625 ml). Used in the UK and Canada on older recipes, drinks measures and some bottle labels.

What is a US fluid ounce?

A US customary unit equal to 1/16 of a US pint. Used in the US for beverage and bottle sizes.

Who Converts UK Fluid Ounces to US Fluid Ounces?

UK fluid ounces are used mainly in the UK (pub pints, fuel economy in mpg) and older Canadian recipes, while US fluid ounces are used mainly in the United States. This conversion bridges the US customary and metric systems, so it comes up whenever a figure crosses the US border with Canada or the Atlantic with the UK: product specifications, travel, recipes, school work and trade.

How big is 1 imp fl oz compared with 1 fl oz?

1 imp fl oz is only 0.96076 of 1 fl oz: you need 1.04084 UK fluid ounces to make 1 fl oz, so the number gets smaller when you convert. The two are close in size: 1 fl oz is about 4.08% larger than 1 imp fl oz, which is easy to miss.

UK Fluid Ounces to US Fluid Ounces without a calculator

Real-world imp fl oz to fl oz examples

Everyday UK fluid ounces and US fluid ounces
ExampleUK Fluid OuncesUS Fluid Ounces
One imperial pint20 imp fl oz19.2152 fl oz
Half a pint10 imp fl oz9.6076 fl oz
One imperial fluid ounce1 imp fl oz0.96076 fl oz
A can of soda12.4901 imp fl oz12 fl oz
A US pint glass16.6535 imp fl oz16 fl oz
One cup8.32674 imp fl oz8 fl oz

How exact is the imp fl oz to fl oz factor?

The factor is exact by definition, so any error comes only from rounding. For everyday use, 3 significant figures are plenty; for engineering or invoices, keep 5 or more.

Mistakes to avoid

What people convert next

Next, you might want us fluid ounces to milliliters, uk fluid ounces to milliliters, milliliters to us fluid ounces and us tablespoons to us fluid ounces. The full volume converter lists every unit.

On pakmath.com, the percentage calculator is a useful next step, as is the scientific calculator; our sister site Adzita has a calorie calculator.

Frequently asked questions

How many US fluid ounces are in a UK fluid ounce?

There are 0.96076 US fluid ounces in 1 UK fluid ounce (1 imp fl oz = 0.9607599392 fl oz).

How many UK fluid ounces are in a US fluid ounce?

There are 1.04084 UK fluid ounces in 1 US fluid ounce (1 fl oz = 1.0408427321 imp fl oz).

How do I convert UK fluid ounces to US fluid ounces?

Multiply by 0.96076, or divide by 1.04084 if that is easier. Example: 10 imp fl oz = 9.6076 fl oz.

What is 10 imp fl oz in US fluid ounces?

10 imp fl oz = 9.6076 fl oz.

What is 100 imp fl oz in US fluid ounces?

100 imp fl oz = 96.076 fl oz.

Is the imp fl oz to fl oz conversion exact?

Yes. The factor comes from the official definitions of both units (NIST Handbook 44, Appendix C, and NIST SP 811 (US customary volume units)). Results are shown to up to 10 decimal places; round them to suit your purpose.

What is an easy way to convert UK fluid ounces to US fluid ounces?

In your head: multiply by 1 (about 4.1% off). 20 imp fl oz × 1 ≈ 20 fl oz.

How many US fluid ounces is 20 imp fl oz (one imperial pint)?

20 imp fl oz = 19.2152 fl oz.

How many UK fluid ounces is a shot (jigger) (1.5 fl oz)?

1.5 fl oz = 1.56126 imp fl oz.

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Reviewed by

Dr. Muhammad Amjad Khadim PhD Mathematics

Dr. Muhammad Amjad Khadim holds a PhD in Mathematics. He writes and reviews the guides on pakmath.com and checks every formula, conversion factor and worked example against published standards and official guidance before it goes live. Spotted an error? Tell us and it will be corrected.

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First published 28 October 2026 · Last reviewed 5 November 2026