Accurate by design

Plan it right.
Build it with confidence.

Accurate calculations for DIY and home projects. Get quantities, material lists, and cost estimates in seconds.

Real quantitiesSquares, bags, yards and more
Instant resultsNo signup, no waiting
Shopping readyMaterial lists & costs you can use
CalcBooth project overview: a house with a 20×24 ft concrete slab, materials list and a $512–$624 cost estimate.
Accurate ResultsDocumented formulas and real trade rates behind every number.
Material & Cost EstimatesQuantities, a shopping list and a price range for the job.
Plan with ConfidenceAdd waste, compare materials and order the right amount.
Built for Every BuilderFrom weekend DIY projects to pros sizing a bid.

Decking

Deck cost, deck boards and floating decks — price the build and size the lumber, boards and hardware.

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Interior

Paint, tile, flooring and drywall calculators — size the materials and estimate the cost for any interior or renovation project, fast and free.

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HVAC

BTU sizing for air conditioners and mini-splits — find the cooling capacity a room needs and the right unit size.

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Trusted by BuildersDIYers and pros use CalcBooth to plan jobs.
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Always ImprovingNew calculators and refinements often.
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Why CalcBooth

CalcBooth tools give carefully built planning estimates. Confirm exact quantities and pricing with your supplier or contractor before you buy.