Home / Cups & grams / How many ml in a cup?
How many ml in a cup?
A US cup is 236.6 ml, usually rounded to 240 ml. A metric cup (Australia, NZ, Canada) is 250 ml.
236.6 mlUS customary cup
240 mlUS legal cup
250 mlmetric cup
| Cup type | Millilitres |
|---|---|
| US customary | 236.6 ml |
| US legal | 240 ml |
| Metric | 250 ml |
| UK (imperial, old) | 284 ml |
Recipes generally treat 1 cup as 240 ml. The 10 ml gap between a US and metric cup rarely matters for cooking, but can for baking large batches.
Frequently asked questions
How many ml in a cup?
A US cup is 236.6 ml (often rounded to 240 ml). A metric cup is 250 ml.
Is a cup 250 ml?
250 ml is the metric cup used in Australia, New Zealand and Canada. The US cup is 240 ml.