Gutter Length Calculator

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Estimate gutter and downpipe length for a simple roof perimeter.

RoofingWorking calculatorMobile friendly

Gutter Length CalculatorVisual reference for this tool.

Use this calculator for quick estimating and planning. Verify project-specific assumptions before final procurement or design.

Roof Length (m)

Gutter Sides (nos)

Downpipes (nos)

Downpipe Height (m)

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Note—

Calculations run locally in your browser; no backend is required.

Gutter Length = Roof Length × Gutter Sides; Downpipe Length = Count × Height

A 10 m roof with gutters on two sides requires 20 m gutter before allowance.

For structural, electrical, code-compliance or safety-critical work, use this as a preliminary estimate and verify with a qualified professional.

Short answers for common estimation questions.

They are estimation values. Site conditions, product specifications and local practice can change final quantities.

Yes. Civil Micros is designed to work on mobile browsers without a backend.

Continue your calculation workflow.