FREE · CALCULATORS & CONVERTERS
Gutter Calculator.
Estimate gutter length, hangers and downspouts from the eaves length and the two spacings.
Hangers include both ends. Downspouts round up, with at least one. The gutter profile and rainfall are not checked. Local arithmetic only. This is a quantity or geometry estimate, not a code check and not a substitute for a licensed professional.
- Gutter length
- 12 m
- Hangers
- 21
- Downspouts
- 2
- Corners
- 4
Hangers are floor(length / spacing) + 1. Downspouts round the eaves length up to the spacing, with at least one. Corners are the count you enter. Capacity of the gutter profile is not checked.
How to use Gutter Calculator
Enter the eaves length, how far apart the hangers are, and the downspout spacing. Add the corner count yourself.
How it works
Estimate gutter length, hangers and downspouts from the eaves length and the two spacings. Hangers include both ends. Downspouts round up, with at least one. The gutter profile and rainfall are not checked. Local arithmetic only. This is a quantity or geometry estimate, not a code check and not a substitute for a licensed professional.
Example
12 m of eaves, hangers every 0.6 m and a downspout every 6 m.
Questions about Gutter Calculator
Is Gutter Calculator free, and do I need an account?
Yes. This tool is free to use in your browser without an account. Processing takes place on your device.
What are the limits and what should I check?
Hangers include both ends. Downspouts round up, with at least one. The gutter profile and rainfall are not checked. Local arithmetic only. This is a quantity or geometry estimate, not a code check and not a substitute for a licensed professional. Review the result before using it in your work.
Is my input sent to a server?
Your input is processed in your browser and is not uploaded by this tool. Files and pasted text are cleared when the page is refreshed. Normal website requests are still required to load the page and its libraries. Read the privacy explanation.