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Imperial Fluid Ounce to Milliliter Converter

VerifiedLast reviewed: Jul 25, 2026Fact checked by: Adil BaltiFactor: 1 fl oz (imp) = 28.413062 mLSource: Encyclopædia Britannica
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What is Imperial Fluid Ounce to Milliliter Converter

An imperial fluid ounce to milliliter converter translates volume measurements from imperial fluid ounces (imp fl oz) to milliliters (mL). It uses the precise conversion ratio where 1 imperial fluid ounce equals exactly 28.4131 milliliters.

Definitions of Imperial Fluid Ounce and Milliliter

What is Imperial Fluid Ounce?

An imperial fluid ounce is a unit of volume in the imperial system equal to 1/20th of an imperial pint. It is approximately equivalent to 28.41 milliliters.

What is Milliliter?

A milliliter is a metric unit of volume equal to one-thousandth of a liter. It is commonly used in medicine, cooking, and chemical laboratory procedures.

Imperial Fluid Ounce to Milliliter Formula

mL=fl oz (Imp)×28.413062\text{mL} = \text{fl\ oz\ (Imp)} \times 28.413062

Conversion explanation: Multiply the value in Imperial Fluid Ounce by 28.4130625 to get the equivalent value in Milliliter.

How to Convert Imperial Fluid Ounce to Milliliter

To convert a value from imperial fluid ounces to milliliters, multiply the value by the conversion multiplier:

Milliliters = Imperial Fluid Ounces × 28.4130625

Step-by-Step Example

Converting a 5 imperial fluid ounce volume into milliliter:

  • Identify the multiplier factor: 28.4130625.
  • Multiply 5 by the factor: 5 × 28.4130625 = 142.0653125.
  • Result: 5 imperial fluid ounces is equal to 142.0653125 milliliters.

Imperial Fluid Ounce to Milliliter Conversion Table

Imperial Fluid Ounce [fl oz (imp)]Milliliter [ml]
0.01 fl oz (imp)0.284130625 ml
0.1 fl oz (imp)2.84130625 ml
1 fl oz (imp)28.4130625 ml
2 fl oz (imp)56.826125 ml
3 fl oz (imp)85.2391875 ml
4 fl oz (imp)113.65225 ml
5 fl oz (imp)142.0653125 ml
6 fl oz (imp)170.478375 ml
7 fl oz (imp)198.8914375 ml
8 fl oz (imp)227.3045 ml
9 fl oz (imp)255.7175625 ml
10 fl oz (imp)284.130625 ml
20 fl oz (imp)568.26125 ml
30 fl oz (imp)852.391875 ml
50 fl oz (imp)1420.653125 ml
100 fl oz (imp)2841.30625 ml
500 fl oz (imp)14206.53125 ml
1000 fl oz (imp)28413.0625 ml
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