A cup is 8 oz. 1 1/2 cups is 12 oz, so it would be a little over 1 1/2 cups.
13 ounces is very very close to 11/2 cups, but a little over :)
1 Cup = 8 oz
Therefore 1 & 5/8 of a cup
Just over 1 1/2 cups
Therefore 1 & 5/8 of a cup
Just over 1 1/2 cups