Estimate before you buy
Home Renovation Calculator Collection
Plan common renovation quantities and allowances across rooms, surfaces, outdoor projects, and energy use.
The practical outcome
Prepare a more complete material estimate before comparing products, contractors, and project quotes.
- 1Measure the project area or perimeter.
- 2Estimate material quantities with an appropriate waste allowance.
- 3Compare package quantities and operating costs before purchasing.
Recommended sequence
Tools in this collection
Calculate rectangular area and total multiple spaces.
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Estimate wall area and gallons of paint needed for a room.
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Estimate flooring area, waste allowance, and package quantity.
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Estimate tile count from room and tile dimensions with waste.
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Estimate wallpaper rolls from room dimensions and roll coverage.
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Estimate cubic yards of concrete for a slab.
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Estimate deck area and board quantity.
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Calculate lumber volume in board feet from board dimensions and quantity.
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Estimate fence panels, posts, and project length.
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Estimate roof area, waste, and shingle squares.
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Estimate cubic yards of mulch from bed area and depth.
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Estimate gravel volume, weight, and purchasable quantity.
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Estimate topsoil volume from area and depth.
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Estimate a basic cooling capacity range from room area.
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Estimate electricity use and operating cost for an appliance.
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Related collections
Keep the full plan together
Save and compare your scenarios.
My Projects stores actual inputs and results so you can return, revise, compare, and export the work behind a decision.