Question: 1 (15 ounce) can garbanzo beans?
Answer: Can sizes are fairly standard and about 400g/15 ounces which yields 250g (1 1/2 cups) of beans once drained. Chickpeas roughly double their weight once cooked. So to get 250g cooked chickpeas you need to cook 125g (3/4 cup) dried chickpeas.