Home & Garden Calculators
Explore our free home & garden calculators with accurate formulas and step-by-step breakdowns.
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Paint Calculator · How Many Gallons Do You Need?
Find how many gallons of paint you need for a room: walls and ceiling, doors and windows subtracted, 1 to 3 coats, optional primer and cost.
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Tile & Flooring Calculator · How Many Tiles and Boxes Do You Need?
Find how many tiles or flooring planks and how many boxes you need for a room, with extra for cuts, a layout allowance and the material cost.
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Square Footage Calculator · Rooms, Walls and Irregular Lots
Find the square footage of a room, wall or irregular lot in feet, inches, yards or meters. Handles L-shapes, triangles, circles and a four-sided lot with a diagonal.
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Concrete Calculator · Cubic Yards, Bags and Cost for a Slab
Find how many cubic yards of concrete or 40-, 60- and 80-lb bags you need for a slab, patio, driveway or footing, with extra for waste and a cost estimate.
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