When the kidneys aren't functioning properly, waste and fluid that are typically removed from your body in the urine can accumulate and cause disease. The normal range for an adult urinary output is between 400 to 2,000 mL of urine daily -- with a normal fluid intake of about 2 liters per day.Values for normal urinary output may vary slightly between laboratories.A urine output of 500 mL per day is generally considered adequate for normal function.ormal Urinary Output. The normal range for an adult urinary output is between 400 to 2,000 mL of urine daily -- with a normal fluid intake of about 2 liters per day. Values for normal urinary output may vary slightly between laboratories.