According to the Mayo Clinic website “The Institute of Medicine determined that an adequate intake for men is roughly 3 liters (about 13 cups) of total beverages a day. The adequate intake for women is 2.2 liters (about 9 cups) of total beverages a day.” (Please note the quote does not say water – it says total beverages. However, it does go on to day that “soda” should not count in the total.)
The best way we found to calculate minimum water intake is the formula
Your weight x 66% = ounces of water daily
So, if you are an adult that weighs 150 pounds, you would need 100 ounces of water intake daily.
150 x 66% (use .66 in your calculator) = 100
Numbers to remember when calculating
– 16 cups in a gallon
– 128 ounces in a gallon
– 8 ounces is one cup
From our research, we’ve found there are quite a few other factors that should also be considered. Store more water (about 8 to 12 ounces a day) for
– any person who is pregnant or nursing
– for every 30 minutes of exercise or rigorous work
– if you are located at a high altitude (8 ounces more for every 2,000 feet)
– if you are located in a desert-type environment (either cold or hot)
So, if you have one adult male (200 pounds), one adult female (135 pounds), and two children (40 and 80 pounds) and you are located at sea level and you don’t intend to perform much physical activity, you can figure about 300 ounces or 2 1/3 gallons per day this family would need to store. That’s 70 gallons per month of water you need to store.
If you have the room, one way to store water is an above ground swimming pool. Just add a decent filter to your “tools” to remove the chlorine and bacteria before you drink the water.
To figure how much a pool holds (all dimensions should be calculated in FEET)
Round pools – diameter x diameter x depth of water x 5.9 = gallons of water in pool
Square pools – length x width x depth of water x 7.5 = gallons of water in pool
Round pool 12 feet in diameter by 30 inches of water would be calculated as
12 x 12 x 2.5 x 5.9 = 2124 gallons
Don’t forget the filter to make the pool water safe to drink!