Interior Material Calculators
Free calculators for interior materials — paint, flooring, tile, drywall, and lumber. Enter your room dimensions and get exact quantities in gallons, boxes, or sheets.
Calculators
Paint Calculator
Gallons for any room — accounts for doors, windows, and coats.
Flooring Calculator
Boxes of hardwood, laminate, or LVP with waste factor.
Tile Calculator
Tile count, thinset, and grout for any room or surface.
Drywall Calculator
Sheets, joint compound, and tape for walls and ceilings.
Lumber Calculator
Board feet for framing, decking, and carpentry projects.
Insulation Calculator
Bags or rolls to reach any R-value for attics, walls, and crawlspaces.