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Insulation Calculator

Estimate how many insulation batts or rolls are needed to cover an area.

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Estimate how many insulation batts or rolls are needed to cover an area.

How It Works

How Insulation Calculator Works

The area to be insulated is divided by the coverage of a single batt or roll to estimate how many you'll need to buy.

FAQ

Frequently Asked Questions

Does higher R-value insulation cover less area per batt?
Often yes — higher R-value batts are typically thicker for the same width and length, and coverage per package can vary by manufacturer, so check the actual coverage printed on your specific product.

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