Room Area Calculator
Calculate room area or flat ceiling area from length and width.
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Home calculators
Calculators for rooms, walls, paint, wallpaper, tile, flooring, and home material planning.
Start with room, wall, and surface measurements before estimating materials.
Calculate room area or flat ceiling area from length and width.
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Calculate total wall area from room length, width, and wall height, with optional door and window deductions.
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Estimate total curtain width, curtain drop, and optional width per panel from window size, fullness ratio, and allowances.
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Estimate blind width and blind height for inside or outside mount using window measurements and optional allowances.
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Estimate wall finishes such as paint and wallpaper from measured areas.
Estimate how much paint you may need for walls based on area, coats, coverage, and waste allowance.
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Estimate primer quantity from surface area, primer coats, coverage, and optional waste allowance.
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Estimate wallpaper rolls using a drop-based method that accounts for roll length, roll width, room height, pattern repeat, and waste allowance.
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Plan tile quantities and related materials for floors and walls.
Estimate the number of tiles needed from area, tile size, waste allowance, and optional tiles per box.
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Estimate how many tile adhesive bags you need from tiled area, coverage per bag, and waste allowance.
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Estimate grout weight from tiled area, tile size, joint width, joint depth, and waste allowance.
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Estimate flooring packs, carpet area, and related floor-covering quantities.
Estimate carpet area from room length, room width, and optional waste allowance.
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Estimate how many flooring packs you need from floor area, pack coverage, and waste allowance.
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Estimate laminate flooring planks from room size, plank size, expansion gap, waste allowance, and optional planks per pack.
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Estimate bulk home project materials such as concrete as this section expands.
Estimate outdoor home project materials such as gravel, mulch, and simple landscaping quantities.
Estimate gravel volume for a rectangular path, driveway section, garden bed, or outdoor home project.
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Estimate mulch volume for a rectangular garden bed, planting area, or outdoor home project.
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Estimate fence panels and posts for a simple straight fence run using total length, gate width, panel length, and waste allowance.
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Plan finishing materials such as skirting, baseboards, and trim.