How much water do you lose in urine?

The amount of water lost in urine varies based on factors such as fluid intake, diet, and overall health. On average, adults produce about 800 to 2,000 milliliters (approximately 27 to 68 ounces) of urine per day, which is about 1 to 2 liters. This output can increase with higher fluid consumption, exercise, or heat. Maintaining proper hydration is important to balance this loss and support bodily functions.