How do I use the Insulation Calculator?

Enter your project measurements in the fields above. Results update instantly with material quantities and estimates.

Is my project data sent to a server?

No. Homeowner calculators run in your browser. Your measurements stay on your device.

Do I need an account?

No signup is required. All homeowner tools on Online Tool Hub are free to use.

Energy & HVAC

Insulation Calculator

Estimate batts or blown-in insulation coverage.

Inputs

Area length(ft)Area width(ft)Insulation typeTarget depth(in)

Results

Insulation area: 1200 sq ft
Fiberglass batts: 38 batts (16×8 ft)

All calculators, planners, and checklists provide estimates for planning purposes only. They are not professional advice. Read full disclaimers

Shop Materials

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About Insulation Calculator

Free online insulation calculator. Estimate batts or blown-in insulation coverage. Instant estimates for your energy & hvac project — no signup required.

Why choose Online Tool Hub?

Free forever — supported by non-intrusive ads
Privacy-first — calculations stay in your browser
Works on desktop and mobile
Part of 18 free energy & hvac tools on Online Tool Hub

Frequently asked questions

How do I use the Insulation Calculator?: Enter your project measurements in the fields above. Results update instantly with material quantities and estimates.
Is my project data sent to a server?: No. Homeowner calculators run in your browser. Your measurements stay on your device.
Do I need an account?: No signup is required. All homeowner tools on Online Tool Hub are free to use.