How much is normal adult urine volume?

Generally speaking, the urine volume of normal adults is about 1,000 to 1,500 ml a day, which is the urine volume of adults in 24 hours. Therefore, if the urine volume of adults is less than 500 ml, it is called oliguria, and less than 100 ml is called anuria. As long as the normal diet is in place, it will generally be normal. However, if you drink more water or eat less, the urine volume will be more.