How Much Water Do I Need for a 2-Day Hike?

https://mountainsforeverybody.com/how-much-water-do-i-need-for-a-2-day-hike

I am sure that there are many possible answers to the question in the title. I am neither a medical doctor nor a nutritionist, but I am a mountaineer.

So from my experience, I never go without a minimum of 1.5 liters per day, usually this is 2-2.5 liters, and sometimes even 2.5-3 liters if this is a very warm day or a very demanding tour.