How many liters of water does your body need to be healthy?

There's no one answer to this question as the amount of water a person needs to drink per day can vary depending on a number of factors, such as age, weight, activity level, climate, and overall health. However, the National Academies of Sciences, Engineering, and Medicine recommends that adult women drink around 2.7 liters (91 ounces) of water per day and that adult men drink around 3.7 liters (125 ounces) of water per day. However, note that these are just general guidelines and can vary depending on the individual.