Cups to Milliliters Converter

Convert cups to ml (US cups or Imperial cups) online. Calculate how much is X cups of any liquid (water, milk, vegetable oild, etc.), ground, or powdered recipe ingredient (flour, sugar, salt, etc.) in ml. Includes cups to ml conversion tables for quick reference.

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    Quick navigation:
  1. Cups and milliliters in recipes
  2. How many milliliters in a cup?
  3. Converting between cups and ml
  4. Cups to Milliliters conversion tables

    Cups and milliliters in recipes

The cup is a unit for measuring volume with several definitions in use. The most used is the US legal cup which is defined as containing 240 ml of volume as per a 1970 international treaty the US is a part of. Pre-1970 American recipes might contain measurements in Imperial cups which are slightly larger at 284 ml. Both of these are supported by this converter.

Milliliters are a well defined unit as one thousand part of the liter (a.k.a. litre), the base unit of the international measurement system, also known as the metric system. The cup is in fact defined in terms of milliliters which makes conversions between the two units straightforward as they also measure the same thing: volume.

It is relatively easy to convert between cups and ml making them practically interchangeable in the kitchen. Our cups to ml converter should be the choice when speed and convenience are important. Conversion by hand can be easy in some scenarios, but somewhat challenging in others. See below.

    How many milliliters in a cup?

There are 240 ml in a cup if we use US cups as our definition of a 'cup'. According to the Imperial (UK) definition, a cup equals precisely 284 ml. Both these definitions follow from 20-th century international treaties on measurement units signed by both the US and UK.

    Converting between cups and ml

The conversion from cups to milliliters is painless as both units measure volume.

Half a cup of water to milliliters

Sample task: convert half a cup of water to milliliters, adhering to the US definition of the unit. Solution:

US cup * 240 = ml
0.5 US cup * 240 = 120 ml
End result:
0.5 US cup is equal to 120 ml

A cup of milk to milliliters

Sample task: convert two cups of milk to milliliters, using the UK / Imperial definition of a cup. Solution:

Imperial cups * 284 = ml
2 Imperial cups * 284 = 568 ml
End result:
2 Imperial cups is equal to 568 ml

There is no need to take into account what ingredient is being measured since a cup of water is equal to a cup of milk is equal to a cup of sugar, salt, almonds, or anything else you might find in a recipe.

    Cups to Milliliters conversion tables

For your convenience, we present conversion charts for cups (US, UK) and their equivalent numbers of milliliters.

Cups to Milliliters table

Here is a convenient table with often used quantities in US cups and their corresponding values in milliliters.

Cups to ml conversion table (US)
Cups (US) Milliliters
¼ cup 60 ml
⅓ cup 80 ml
½ cup 120 ml
1 cup 240 ml
2 cups 480 ml

Imperial Cups to Milliliters table

A kitchen conversion table with the UK standards of the units is shown below.

(Imperial) Cups to ml conversion table
Cups (Imperial) Milliliters
¼ cup 71 ml
⅓ cup 95 ml
½ cup 142 ml
1 cup 284 ml
2 cups 568 ml

Cite this converter & page

If you'd like to cite this online converter resource and information as provided on the page, you can use the following citation:
Georgiev G.Z., "Cups to Milliliters Converter", [online] Available at: URL [Accessed Date: 28 Nov, 2022].