Calculate the materials needed for your gutter installation including linear feet of gutter, downspouts, hangers, end caps, and corners. Enter your roof measurements to get a complete materials list.
Enter Your Measurements
Results
Gutter Sections (10 ft)
12
sections
Downspouts
4
downspouts
Downspout Length
56
ft
Hangers
60
hangers
Elbows
12
elbows
End Caps
6
end caps
Formula
How to Use This Calculator
How to Use
- 1
Measure the total linear feet of gutter needed around the roof eaves.
- 2
Enter the number of stories for downspout length calculation.
- 3
Enter the number of outside and inside corners.
- 4
Enter the total roof area to help size the gutter system.
Frequently Asked Questions
Frequently Asked Questions
How many downspouts do I need?
What size gutters do I need?
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About This Calculator
This calculator uses the formula: Gutter Sections = Length ÷ 10 | Downspouts = Length ÷ 35 | Hangers = Length ÷ 2. All calculations follow industry-standard methods. Results are estimates — always verify with a licensed professional for structural or code-compliant work.
Built and maintained by the CalcSmart team. Last updated March 2026.
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