Insulation ROI Calculator

Payback period from energy savings and insulation cost.

Building component

Current R-value

New total R-value

Annual heating/cooling cost

Insulation project cost

Energy cost inflation

%/yr

Insulation lifespan

years

Tab to move between fields

Heat loss reduction

77.55%

Simple payback

5.8 years

First-year savings$521

Inflation-adjusted payback5.4 years

Lifetime gross savings$24,794

Lifetime net savings$21,794

Return on investment726%

How to Use This Calculator

Enter Building component, Attic / ceiling, and Walls.
Set Floor / crawl space, Basement walls, and Ductwork.
Adjust Current R-value, New total R-value as needed.
Review Heat loss reduction (%) and Simple payback (years).
Use First-year savings ($) and Inflation-adjusted payback (years) to inform your decision.

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