Home Improvement calculators
Plan the project before you swing the hammer — budgeting, financing, and material math without the spreadsheet.
12 free calculators · updated June 2026
Paint Calculator
Work out how many gallons you need for any room — walls, ceiling, and multiple coats included.
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Flooring Calculator
Square footage, waste allowance, and boxes to buy — with an optional cost estimate.
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Tile Calculator
How many tiles for your floor, shower, or backsplash — any tile size, waste included.
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Mulch Calculator
Cubic yards and bags for any bed size and depth — plus bulk-vs-bagged buying math.
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Gravel Calculator
Cubic yards and tons for any area and depth — loose fill or compacted base.
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Topsoil Calculator
Cubic yards and bags for beds, lawns, and topdressing — with the right depth for each job.
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Concrete Calculator
Slab volume in cubic yards and bags — with the order margin that prevents a short pour.
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Wallpaper Calculator
Rolls to buy for any room — pattern repeat and double-roll math handled for you.
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Drywall Calculator
Sheets for walls and ceiling with waste included — plus screws, tape, and mud guidance.
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Fence Calculator
Posts, panels, and gates for any run — with spacing and corner math done right.
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BTU Calculator
The right AC size for any room — Energy Star base, sun, ceiling height, and occupancy included.
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Grass Seed Calculator
Pounds of seed for a new lawn or overseeding — rates for five common US grasses.
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Mortgage Calculator
Monthly payment, PMI drop-off, and 5/1 ARM cap math — down to the dollar.
Coming soon