Knowing how much water you need each day depends on factors including your weight and activity level.
The body is about 60% water but we’re constantly losing water from our bodies, primarily via urine and sweat.
According to MayoClinic.com, you lose about 6.3 cups a day through urination and another 4 cups a day through breathing, sweating and bowel movements.
You get some water in the food you eat, but it typically amounts to only 20 percent of your daily needs.
This is why it is very important to replenish our bodies with water.
Experts agree that the amount of water one needs for health and ideal weight is half of one’s weight in ounces of water each day.
For example, a person weighing 160 pounds would need to drink 80 ounces of water daily.
How to Calculate How Much Water You Should Drink for Your Body Weight
If you are not active, divide your weight in half to determine how many ounces of water you should drink each day.
And if you are active, divide your weight by 2/3, instead of 1/2.