Pick a calculator to estimate quantities, R-value and cost. Each one explains its formula below the tool.
Spray Foam Insulation Calculator
Board feet, DIY kits and pro sets for open- or closed-cell foam.
Attic Insulation Cost Calculator
Blown-in fiberglass or cellulose to your climate zone’s R-value, DIY vs. pro.
Blown-In Insulation Calculator
Bags, depth and ceiling weight for four bag labels, side by side.
