Paint Calculator
Estimate gallons of paint for walls using room dimensions, doors, windows, coats, coverage and waste.
Open calculator →Calculator directory
Home calculators that show their work.
Search by material, project or problem. Each tool is free, works on mobile and keeps the critical assumptions editable.
Need a quick benchmark?
Use the reference tables for common room sizes, volumes and planning scenarios. Use a calculator when your inputs differ.
Wallpaper Calculator
Calculate wallpaper rolls from wall perimeter, height, roll width, roll length, pattern repeat and waste.
Open calculator →Drywall Calculator
Estimate drywall sheets for walls and ceilings, including openings and waste.
Open calculator →Baseboard Calculator
Estimate baseboard or trim length, piece count and waste from room perimeter and door openings.
Open calculator →Insulation Calculator
Estimate insulation area and package count for rectangular walls after subtracting openings.
Open calculator →Flooring Calculator
Estimate flooring square footage, waste, boxes and material cost for laminate, vinyl or hardwood.
Open calculator →Tile Calculator
Calculate tile count, boxes, waste and cost from area, tile size and tiles per box.
Open calculator →Carpet Calculator
Estimate carpet area in square feet and square yards with waste and optional material cost.
Open calculator →Grout Calculator
Estimate grout volume from tile size, thickness, joint width and project area.
Open calculator →Mulch Calculator
Calculate mulch volume in cubic yards, cubic feet and bags from bed area and depth.
Open calculator →Topsoil Calculator
Estimate topsoil volume by area and depth, with cubic yards and bag counts.
Open calculator →Gravel Calculator
Estimate gravel volume and approximate tons from area, depth and material density.
Open calculator →Sod Calculator
Estimate sod square footage, pieces or rolls and waste for a rectangular lawn area.
Open calculator →Paver Calculator
Calculate paver count and cost from project area, paver dimensions and waste.
Open calculator →Fence Calculator
Estimate fence posts and sections from total run, post spacing and gates.
Open calculator →Deck Board Calculator
Estimate deck boards from deck dimensions, board width, gap and waste.
Open calculator →Concrete Calculator
Calculate concrete volume for a slab and estimate ready-mix bags with waste.
Open calculator →Brick Calculator
Estimate brick count for a wall using wall area, brick face size, mortar joint and waste.
Open calculator →Roofing Calculator
Estimate sloped roof area, roofing squares and shingle bundles from footprint, pitch and waste.
Open calculator →Square Footage Calculator
Calculate square footage for rectangular rooms, walls, floors, patios and project areas.
Open calculator →Cubic Yard Calculator
Calculate cubic yards from length, width and depth for soil, mulch, gravel or concrete projects.
Open calculator →Cleaning Time Calculator
Estimate routine house cleaning time from bedrooms, bathrooms, home size and cleaning intensity.
Open calculator →House Cleaning Cost Calculator
Estimate house-cleaning labor cost from cleaning time, hourly rate and number of cleaners.
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