How Many Gallons Of Rain Water From Gutter Run Off
In this example 600 x 240 x 1 144 000 cubic inches of water.
How many gallons of rain water from gutter run off. Either way you would like to know how much rain has fallen how many gallons have come down from the skies onto your roof yard block or town. The answer is about 623 gallons. In the form below choose an area s and a rainfall amount to see how many gallons of water fell from the sky onto that area. Gutters and a downspout.
Just a half inch of rain falling on a 1 000 square foot roof will yield 300 gallons of water. By this math we are able to catch about 656 66 gallons per inch of rain. Gutters and downspouts the gutters and downspouts take the rainwater down to your cistern. An inch of rain is not much but it if falls in half an hour it could flood a gutter.
So a 50 x 20 roof is 600 x 240 multiply the roof dimensions by the number of inches of rainfall. Rain barrel supplies list. You might even want to know how many baths you could get from your rainstorm. Total roof area also affects runoff.
A roof of 1 200 square feet in size will collect more water than one that is 600 square feet.