How many cups is 20 oz? Leave a Comment / GeneralGreatest Reply1 Cup = 8 0z – There are 2 1/2 Cups in 20 OzRead More: What tims is 9pm PST in Central time? How many linear ft in 1 acre? Related posts:What day is national godchild day? How do you give yourself a footjob? What is the hemlock drink in Top Gun? What breed of dog is akamaru? Which practice reduces the risk of a dangerous boating emergency? READ: Is HI polar?