Imperial fluid ounces to milliliters

Type a value in imperial fluid ounces to see it in milliliters straight away, or type in the second box to convert back.

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How to use it

  1. Type the value in the imperial fluid ounces box.
  2. Read the result in milliliters as you type, and pick the precision you need.
  3. Swap the direction to convert back, or copy the result.

How it is calculated

mL = fl oz (imp) × 28.4130625

Multiply the value in imperial fluid ounces by 28.4130625 to get milliliters.

Example

To convert 25 fl oz (imp) to milliliters: 25 × 28.4130625 = 710.327 mL.

Conversion table

Imperial fluid ounces (fl oz (imp))Milliliters (mL)
128.4131
256.8261
385.2392
5142.065
10284.131
20568.261
25710.327
501,420.65
1002,841.31
2507,103.27
50014,206.5
1,00028,413.1

About the units

Imperial fluid ounce
The imperial fluid ounce is 1/160 of an imperial gallon, exactly 28.4130625 milliliters.
Milliliter
The milliliter is one thousandth of a liter and equals exactly one cubic centimeter.

Limits and caveats

  • Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
  • Both unit factors are exact by their official definitions.

Questions about this tool

How many milliliters are in one imperial fluid ounce?

1 fl oz (imp) = 28.4131 mL exactly.

How do I convert imperial fluid ounces to milliliters?

Use mL = fl oz (imp) × 28.4130625. For example, 25 fl oz (imp) = 710.327 mL.

How many imperial fluid ounces are in one milliliter?

1 mL = 0.0351951 fl oz (imp).

What is the difference between a US gallon and an imperial gallon?

A US gallon is 3.785411784 liters and the imperial gallon used in the UK is 4.54609 liters, about 20% larger. Check where a figure comes from before converting, since US sources mean the US gallon.

How many milliliters are in a cup?

The US customary cup used in recipes is 236.5882365 mL and the metric cup is 250 mL. US nutrition labels round the cup to 240 mL, so the figure differs slightly between sources.