Gutter Calculator
Calculate
Formula
Gutter Length = Roof Edge Length. Sections = Length ÷ 10. Downspouts = Length ÷ 25 (min 2).
Frequently Asked Questions
How many downspouts do I need?
A general rule is one downspout for every 20-30 linear feet of gutter, with a minimum of two.
What size gutters should I use?
5-inch K-style gutters are the most common for residential homes. Larger roofs may need 6-inch gutters.
You may also need
~
Roofing Calculator
Free roofing calculator. Estimate roof area with pitch, squares of shingles, and bundles needed.
Everyday~
Square Footage Calculator
Free square footage calculator. Calculate area in square feet for rooms, homes, flooring, and landscaping. Supports rectangular, circular, and triangular shapes.
Everyday