For measuring, 1 standard cup equals about 240 milliliters (ml).

So if you’re asking “how many ml in a cup,” the usual kitchen answer is:

  • 1 cup ≈ 240 ml (often rounded to 250 ml in some countries).

If you meant a specific type or brand of cup (for example a labeled 200 ml paper cup or a 350 ml reusable cup), then its ml value is whatever is printed or specified for that product, not always 240 ml.