Insulation Calculator
Estimate insulation for walls, attics, and crawl spaces
sq ft
in
%
Helpful Tips
- Higher R-value means better insulating power
- Attic insulation should be R-38 to R-60 in most climates
- Don't compress batts - it reduces effectiveness
- Seal air leaks before adding insulation for best results
Formula Used
Batts/Rolls = Area ÷ Product Coverage; Bags (blown) = Area × Depth ÷ CoverageAbout This Calculator
Calculate the amount of insulation material needed for walls, attics, floors, or crawl spaces. Supports batt, blown-in, and spray foam insulation types.