What is the average volume of urine a person produces per day?

1. Urine production balances fluid intake and is the predominant route of water loss. 2. The average daily urine output as 1.5 liters. 3. This is distinct from the average daily fluid intake of about 2500 mL, since some water also leaves via skin and lungs. 4. So 1.5 liters is the correct average daily urine volume. _Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 26 "Fluid, Electrolyte, and Acid-Base Balance", p.1257-1258 §Regulation of Water Output_