Interior Renovation Calculators
Free calculators for every interior home improvement project — kitchen and bathroom remodels, flooring, paint, drywall, tiling, cabinetry, and basement finishing. Accurate renovation estimates for contractors and DIYers.
Explore related categories:
Kitchen Remodel Cost Calculator
Full kitchen renovation budget — cabinets, countertops, appliances, flooring, plumbing, electrical, and labor.
Bathroom Remodel Cost Calculator
Master bath and powder room renovation costs — vanity, tile, shower, toilet, plumbing, and finishing.
Basement Finishing Cost Calculator
Basement finishing and finishing costs — framing, drywall, flooring, electrical, lighting, and egress windows.
Flooring Installation Cost Calculator
Hardwood, laminate, vinyl plank, tile, and carpet flooring estimates — materials, labor, and subfloor prep.
Cabinet Refacing Cost Calculator
Kitchen cabinet refacing and refinishing costs — doors, drawer fronts, veneers, hardware, and new hardware.
Walk-in Shower Cost Calculator
Tub-to-shower conversion and custom walk-in shower costs — tile, glass, pan, plumbing, and accessibility features.
Basement Waterproofing Cost Calculator
Interior and exterior waterproofing — French drains, sump pumps, crack injection, and exterior membranes.
Exterior & House Painting Cost Calculator
Exterior painting estimates — siding prep, primer, paint, trim, soffits, and labor by home size and surface type.
Window Replacement Cost Calculator
Full-window replacement costs — vinyl, wood, aluminum, double-pane, triple-pane, and installation labor.
Drywall Calculator
Drywall sheet quantity and cost estimate for walls and ceilings — includes mud, tape, and finishing compound.
Paint Calculator
Interior paint quantity and cost — gallons needed, primer, finish coats, and estimated project time by room size.
Tile Calculator
Floor and wall tile estimator — ceramic, porcelain, natural stone. Includes grout, mortar, and waste factor.
Flooring Calculator
Quick material-only flooring estimate — square footage to boxes of flooring needed for your room dimensions.
Interior Renovation Costs in 2026
Interior renovations offer some of the best returns in home improvement. Kitchen remodels recoup 60–75% at resale; bathroom remodels 60–70%. The key is targeting the right scope — a full gut renovation is rarely the best ROI unless the space is fundamentally broken. A well-executed refresh with new cabinets, countertops, and flooring typically outperforms a high-end luxury renovation in resale value.
Material costs in 2026: hardwood flooring runs $8–$18/sq ft installed; quartz countertops $75–$130/sq ft; mid-range cabinets $150–$300/linear foot; porcelain tile $8–$25/sq ft installed. Labor typically adds 40–60% to material costs for most interior trades.
Permits are required for structural changes (wall removal, window enlargement), electrical rewiring, and plumbing reroutes.Cosmetic work — painting, flooring replacement, cabinet refacing — rarely requires permits. Always confirm with your local building department before starting.