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UK Fluid Ounces to Milliliters (imp fl oz to mL) Converter

1 UK fluid ounce (imp fl oz) = 28.4131 milliliters (mL). To convert UK fluid ounces to milliliters, multiply by 28.4131: 25 imp fl oz × 28.4131 = 710.327 mL. Also searched as fl oz to ml UK, imperial fluid ounce to ml, UK fluid ounces to millilitres.

1 imp fl oz = 28.4130625 mL
Convert the other way: Milliliters to UK Fluid Ounces

Quick facts

How to convert UK fluid ounces to milliliters

  1. Take the value in UK fluid ounces.
  2. Multiply it by 28.4131 (the number of milliliters in one UK fluid ounce).
  3. Round the result to the precision you need.
mL = imp fl oz × 28.4131

Worked example: 25 imp fl oz × 28.4131 = 710.327 mL.

To convert milliliters back to UK fluid ounces, multiply by 0.0351951, or divide by 28.4131.

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

UK Fluid Ounces to Milliliters conversion table

UK Fluid Ounces to Milliliters conversion table
UK Fluid Ounces [imp fl oz]Milliliters [mL]
0.01 imp fl oz0.284130625 mL
0.1 imp fl oz2.84130625 mL
1 imp fl oz28.4130625 mL
2 imp fl oz56.826125 mL
3 imp fl oz85.2391875 mL
5 imp fl oz142.0653125 mL
10 imp fl oz284.130625 mL
20 imp fl oz568.26125 mL
50 imp fl oz1420.653125 mL
100 imp fl oz2841.30625 mL
1000 imp fl oz28413.0625 mL

imp fl oz to mL chart from 1 to 100

Milliliters to UK Fluid Ounces conversion table

Milliliters to UK Fluid Ounces conversion table
Milliliters [mL]UK Fluid Ounces [imp fl oz]
0.01 mL0.0003519508 imp fl oz
0.1 mL0.003519508 imp fl oz
1 mL0.0351950797 imp fl oz
2 mL0.0703901595 imp fl oz
3 mL0.1055852392 imp fl oz
5 mL0.1759753986 imp fl oz
10 mL0.3519507973 imp fl oz
20 mL0.7039015946 imp fl oz
50 mL1.7597539864 imp fl oz
100 mL3.5195079728 imp fl oz
1000 mL35.1950797279 imp fl oz

UK Fluid Ounces vs Milliliters

UK Fluid OunceMilliliter
Symbolimp fl ozmL
Equals1 imp fl oz = 28.4131 mL1 mL = 0.0351951 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 milliliter?

One thousandth of a liter. Used for small liquid quantities in cooking, medicine, and packaging.

Frequently asked questions

How many milliliters are in a UK fluid ounce?

There are 28.4131 milliliters in 1 UK fluid ounce (1 imp fl oz = 28.4130625 mL).

How many UK fluid ounces are in a milliliter?

There are 0.0351951 UK fluid ounces in 1 milliliter (1 mL = 0.0351950797 imp fl oz).

How do I convert UK fluid ounces to milliliters?

Multiply the number of UK fluid ounces by 28.4131. For example, 10 imp fl oz × 28.4131 = 284.131 mL. To convert back, multiply by 0.0351951.

What is 10 imp fl oz in milliliters?

10 imp fl oz = 284.131 mL.

What is 100 imp fl oz in milliliters?

100 imp fl oz = 2,841.31 mL.

Is the 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.

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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