Interior Calculators
Updated Formulas shown
Paint, drywall, tile, flooring, carpet, wallpaper and insulation. Every calculator shows its formula and works on your phone at the job site.
Related calculators
- Paint CalculatorHow much paint do you need? Enter room size, doors, windows and coats to get gallons of paint and primer.
- Drywall CalculatorCalculate drywall sheets (4x8, 4x10, 4x12), screws, joint compound and tape for walls and ceilings.
- Tile CalculatorCalculate floor or wall tiles from area, tile size and grout joint, with waste and box count.
- Flooring CalculatorCalculate boxes of laminate, LVP or hardwood flooring from room size and box coverage, with waste and cost.
- Laminate Flooring CalculatorHow much laminate flooring do you need? Enter room size and box coverage to get boxes, square footage and cost.
- Carpet CalculatorCalculate carpet in square yards and linear feet off a 12 ft roll, with waste and price per square yard.
- Wallpaper CalculatorCalculate rolls of wallpaper from total wall width, height and openings, accounting for pattern repeat.
- Insulation CalculatorCalculate insulation batts or rolls for walls, attics and floors from area and bag coverage.
- Epoxy CalculatorCalculate epoxy resin for tabletops, river tables and floors from length, width (or diameter) and pour thickness.
- Blown-In Insulation CalculatorCalculate bags of blown-in fiberglass or cellulose insulation for your attic from floor area and the bag's coverage at your target R-value.
- Caulk CalculatorCalculate 10.