Cups to Millilitres

Convert cups to millilitres instantly, right here.

Maintained by Roshan.

Use Cups to Millilitres

Converts cups to millilitres in this tab, with nothing sent anywhere.

Cups

Runs entirely on your deviceThe conversion happens in this browser tab. Nothing you type is uploaded, logged or stored, which is worth knowing for anything you would not paste into a search box.

Millilitres

Type or paste, then run.

The result will appear here.

One US legal cup is 240 ml, while many recipes use the 236.588 ml customary cup and Australian recipes use 250 ml. This converter follows the US customary value shown beside the result, so check the recipe's country before measuring.

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About Cups to Millilitres

US recipes measure liquids and loose ingredients in cups, but a metric kitchen uses millilitres on a jug or scale. Converting cups to millilitres lets a metric cook follow an American recipe precisely rather than guessing. Using the US legal cup of 240 millilitres, one cup is 240 ml, half a cup 120 ml, and a quarter-cup 60 ml - the figures a metric measuring jug actually shows. Baking especially rewards the switch, since weighing or measuring 240 ml is far more repeatable than packing a dry ingredient into a cup, where how firmly you press changes the amount. Cocktail recipes scaled for a crowd are easier in millilitres, so converting the cups a US guide lists lets you batch a drink precisely in a metric jug. A cup is a volume measure; converting it to millilitres does not determine the weight of flour or another ingredient.

Using Cups to Millilitres

Type a number of cups. You can paste a value with its unit; the tool reads the number.
The exact factor is applied and the result is shown as ml, updating live as you type.
Copy the answer, or switch to the reverse converter to go from ml back to cups.

Where cups to millilitres helps

Following a US recipe

Two cups of stock becomes 480 ml on a metric jug.

Both directions

Need the opposite? The ml-to-cups converter is linked below and uses the exact inverse factor.

Choose the cup standard before scaling a recipe

Using this tool's 240 ml cup, three quarters of a cup is 180 ml and one third is 80 ml. A recipe written for a 250 ml metric cup would give 187.5 ml and about 83.33 ml instead. Check the recipe's measurement convention before scaling every ingredient. This converts volume; it cannot convert cups of flour to grams without a separate density assumption.

Before you use the result

The result is rounded for readability, so a value converted and then converted back may differ in the last decimal place. The underlying factor is exact.
Units in your input are ignored - only the number is read - so make sure the figure you type is really in cups.

Questions about Cups to Millilitres

How many ml in a cup?

This tool uses the US legal cup of 240 ml. Note other standards differ - a US customary cup is about 237 ml and a metric cup is 250 ml.

Is my data uploaded?

No. Cups to Millilitres does the arithmetic in this browser tab; the value is calculated on your device and is not sent to a server.