I always do cup = 245ml. If you then undershoot or overshoot by 5ml, you’re always okay. That Wikipedia page is also missing the Dutch “kopje” (little cup) mea

I always do cup = 245ml. If you then undershoot or overshoot by 5ml, you’re always okay. That Wikipedia page is also missing the Dutch “kopje” (little cup) measurement, which is 150ml.