a humanm need 18 -20 glasses of water per day.
a human needs 8 to12 glasses in a day .
a lot of liters.
2-3 litres
your body needs 2 1/2 gallons of water each day.
Normally we need 8-10 glasses of water a day but don't drink 8-10 cups in a row!
The standard answer is eight 8 oz. glasses per day.
well, my parents say about 4-8 gallons.
The human body needs 64 oz of water a day.
Estimates vary, but each person uses about 80-100 gallons of water per day.
At least 64 ounces a day!
well you need about 5-8 glasses of water every day