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Gutter Calculator

Linear feet of gutter and downspouts.

Planning a roofer project?

Tell us what you need and local pros will get in touch. Free, no obligation.

Save your results to your home — free.Open the full tool →

How to use this calculator

  1. Measure the total roofline (eaves) length.
  2. See gutter feet and downspouts needed.
  3. Get an installed cost range.

Tired of calling around? Post your project once and let local pros come to you.

Frequently asked questions

How many downspouts do I need?
Plan about one downspout per 35 feet of gutter, plus one at each corner. Direct the water well away from the foundation.
How much does guttering cost?
Aluminum gutters run about $8–$12 per linear foot installed. A typical home with 120 feet runs roughly $1,000–$1,500.
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