Attic Insulation Payback Calculator
Calculate the payback period for adding attic insulation. Estimate annual savings and ROI from upgrading your attic insulation R-value.
Free Insulation Calculators
10 toolsR-value, U-value, window upgrade, and insulation payback calculators. Browse our free insulation tools below — no sign-up required.
Door Weatherstripping Savings Calculator
Calculate energy savings from weatherstripping exterior doors. Estimate how much you save by reducing air leakage around doors.
Insulation R-Value to Savings Calculator
Calculate annual energy savings from upgrading insulation R-value. Estimate how much you save by increasing insulation in walls, attics, or floors.
Radiant Barrier Savings Calculator
Calculate cooling savings from installing a radiant barrier in your attic. Estimate reduced heat gain and lower air conditioning costs.
Storm Window Value Calculator
Calculate energy savings from adding storm windows over existing windows. Compare storm window costs and payback vs full window replacement.
Thermal Transmittance (U-Value) Calculator
Calculate the total U-value of a multi-layer wall, roof, or floor assembly. Combine R-values of individual material layers to find overall thermal transmittance.
Triple-Pane Window ROI Calculator
Calculate the return on investment for triple-pane windows vs double-pane. Compare energy savings and payback for triple-glazed window upgrades.
U-Value ↔ R-Value Converter
Convert between U-value and R-value for insulation and building materials. Calculate thermal resistance from thermal transmittance and vice versa.
Wall Insulation Payback Calculator
Calculate the payback period for wall insulation upgrades. Estimate annual energy savings and ROI from insulating or re-insulating your exterior walls.
Window Upgrade ROI Calculator
Calculate the return on investment for upgrading windows. Estimate energy savings from replacing old single or double-pane windows with modern efficient windows.