🌧️ Gutters & Drainage Calculators

Gutter length estimators, downspout sizing, gutter guards, rain barrels, French drains, and slope calculators.

Calculate the total linear feet of gutters needed for your home, including corners, end caps, and joiners.

Determine the number and size of downspouts needed based on your roof area and local rainfall intensity.

Calculate the amount and cost of gutter guards needed to protect your gutters from leaves and debris.

Calculate how much rainwater you can collect and what size rain barrel or cistern you need based on your roof area and rainfall.

Calculate the materials needed for a French drain installation including pipe, gravel, and landscape fabric.

Calculate the correct slope drop for your gutters to ensure proper water flow toward downspouts.

Determine the right splash blocks or downspout extensions to direct water safely away from your foundation.