Rainwater Calculator
Use our rainwater calculator to find out the number of gallons of rain water you can expect to collect each month and year.
Please select your city, if your city is not available, please select the closest location to you. Then enter the length and width of your roof in feet.
Use our rainwater calculator to find out the number of gallons of rain water you can expect to collect each month and year.Please select your city, if your city is not available, please select the closest location to you. Then enter the length and width of your roof in feet.
Please enter appropriate values for each field.
City
Surface Width (roof)
(total feet)
Surface Length (roof)
(total feet)
