Interpreting Your Test Results. The normal range of urine output is 800 to 2,000 milliliters per day if you have a normal fluid intake of about two liters per day. However, different laboratories may use slightly different values.nterpreting Your Test Results. The normal range of urine output is 800 to 2,000 milliliters per day if you have a normal fluid intake of about two liters per day. However, different laboratories may use slightly different values.