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Construction and home-project calculators for square footage, concrete, lumber, gravel, paint, stairs, roofing, drywall, tile, and more.
WT-054
Concrete Calculator
Estimate concrete cubic yards, cubic feet, and common bag counts for rectangular slabs and round pours.
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WT-055
Square Footage Calculator
Calculate square footage for rectangles, triangles, and circles with quantity, waste allowance, and optional material cost.
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WT-063
Paint Calculator
Estimate gallons of paint from room dimensions, openings, coats, ceiling area, coverage, and an extra-material allowance.
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WT-064
Mulch Calculator
Calculate cubic yards, cubic feet, bag counts, and optional cost from landscape-bed dimensions and mulch depth.
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WT-065
Gravel Calculator
Estimate gravel cubic yards, tons, pounds, and cost from project dimensions, depth, density, and ordering allowance.
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WT-066
Cubic Yard Calculator
Convert rectangular or round project dimensions into cubic feet, cubic yards, and cubic meters with quantity and allowance.
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WT-074
Cubic Feet Calculator
Calculate cubic feet from feet-and-inch dimensions and convert the result to cubic yards, cubic inches, and cubic meters.
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WT-075
Board Foot Calculator
Calculate lumber board feet from thickness, width, length, quantity, waste allowance, and optional price per board foot.
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WT-076
Stair Calculator
Calculate straight-stair risers, exact riser height, tread count, total run, stringer length, and stair angle from floor-to-floor rise.
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WT-077
Voltage Drop Calculator
Estimate conductor voltage drop, percentage loss, load voltage, resistance, and wire power loss for common AWG copper or aluminum conductors.
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WT-078
Drywall Calculator
Estimate drywall sheet count from room dimensions, openings, ceiling area, sheet size, waste allowance, and optional sheet price.
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WT-079
Tile Calculator
Calculate tiles and boxes needed from surface dimensions, tile size, openings, waste allowance, and optional price per box.
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WT-080
Roof Pitch Calculator
Convert roof rise and run into pitch, angle, slope percentage, slope factor, and optional sloped roof area with waste allowance.
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