Tile Calculator
Tiles, boxes, waste allowance, and material cost.
Project planning / 9 calculators
Flooring & Interior Material Calculators
A room can involve several different orders: boxes for the floor, sheets for the walls, and lengths for the trim. Start with the surface you are changing, then use the calculator that matches how that material is sold.
Choose your calculator
Free. In your browser. No sign-up.Flooring Calculator
Plank and box counts for your finished floor.
Board and Batten Calculator
Even spacing, board counts, and trim lengths.
Drywall Calculator
Sheets, joint compound, and finishing supplies.
Wallpaper Calculator
Roll counts with pattern repeats and waste.
Carpet Calculator
Carpet rolls, padding, stairs, and a cost breakdown.
Blown-In & Batt Insulation Calculator
Batt packs or blown-in bags for your space.
Shower Tile Calculator
Tile and supplies for shower walls, pans, and niches.
BTU Calculator
A starting estimate for heating and cooling capacity.
Before you order
Plan the material, then the quantity.
Measure each surface separately
Floor area, wall area, and room perimeter answer different questions. Record doors, windows, and fixed fixtures so you can subtract the right openings without removing the same area twice.
Match the calculator to the product
Use flooring for planks, carpet for rolls and padding, and tile for tiled floors or plain walls. A shower has waterproofing, a pan, and wall details of its own, so use the shower tile calculator for that job.
Keep the package label nearby
Coverage per box, roll size, pattern repeat, and stock length can change the order. Enter the actual product specifications and adjust the waste allowance to suit the layout.
Need an area first? Measure the room with the square footage calculator, then take that area to the material-specific tool.