Home DIY Calculators
14 tools, each with formula and worked examples
Paint, tile, concrete, lumber, and renovation estimation tools.
Concrete & Masonry · 2
General · 2
Materials · 9
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Tile Calculator
Calculate tiles needed for any room with different layout patterns. Supports grid, brick, diagonal, and herrin…
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Roofing Calculator
Estimate roofing materials for gable and hip roofs. Calculates squares, shingle bundles, felt rolls, and nails…
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Stair Calculator
Design safe stairs with IBC-compliant rise/run calculations. Computes number of steps, riser height, tread dep…
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Mulch Calculator
Calculate mulch volume for rectangular and circular garden beds. Compare costs between bagged (2 cu ft) and bu…
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Gravel Calculator
Calculate gravel volume in cubic yards and tons for landscaping projects. Choose from pea gravel, crushed lime…
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Tile Calculator
Calculate how many tiles you need for any floor or wall. Includes waste percentage for cuts, multiple tile siz…
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Mulch Calculator
Calculate cubic yards of mulch, topsoil, compost, gravel, or sand needed for any landscaping project. Shows bu…
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Drywall Calculator
Calculate how many sheets of drywall you need for walls and ceiling. Includes screw count, joint compound, tap…
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Board Foot Calculator
Calculate board feet of lumber for any project. Shows nominal and actual board foot volumes with dimensional c…