Acoustic Insulation Calculator
Calculate sound insulation materials for walls and ceilings. Enter wall area and target STC rating to determine insulation quantity for effective noise reduction.
Free Insulation Calculators
13 toolsR-value, batt, spray foam, and blown-in insulation calculators. Browse our free insulation tools below — no sign-up required.
Attic Insulation Depth Calculator
Calculate how much additional attic insulation depth you need. Enter current and target R-values to determine the inches of new insulation required to meet code.
Batt Insulation Calculator
Calculate the number of batt insulation rolls or bags needed. Enter wall area, cavity depth, and R-value to determine fiberglass or rock wool batt quantities.
Blown-In Insulation Calculator
Calculate bags of blown-in insulation for attics or walls. Enter area, desired depth, and coverage per bag to estimate material for cellulose or fiberglass loose-fill.
Crawl Space Insulation Calculator
Calculate insulation for crawl spaces. Choose between floor insulation or wall insulation approaches and estimate material for your crawl space dimensions.
Duct Insulation Calculator
Calculate insulation area for HVAC ducts. Enter duct dimensions and lengths to determine the total surface area for duct wrap or duct board insulation.
Heat Loss Wall Calculator
Calculate heat loss through walls using the Q = A × ΔT / R formula. Enter wall area, R-value, and temperature difference to determine BTU/h heat transfer rate.
Insulation R-Value Calculator
Determine the recommended insulation R-value for your climate zone. Enter your ZIP code zone and building component to find the required R-value per IRC energy code.
Insulation Vapor Barrier Calculator
Calculate rolls of vapor barrier for insulation projects. Enter surface area to determine polyethylene sheeting needed, including overlaps at seams and edges.
Pipe Insulation Calculator
Calculate linear feet of pipe insulation needed. Enter pipe runs by diameter to determine the total length of foam or fiberglass pipe insulation sleeves required.
Rigid Foam Board Calculator
Calculate how many rigid foam insulation boards you need. Enter area and board size to determine sheet count for XPS, EPS, or polyiso rigid insulation projects.
Spray Foam Insulation Calculator
Calculate spray foam insulation needs in board feet. Enter area and thickness to estimate kits or professional product quantities for open-cell or closed-cell foam.
Wall Insulation Calculator
Calculate wall insulation needed after subtracting windows and doors. Enter wall dimensions and openings to determine net insulation area by framing cavity depth.