Free DIY calculators — no signup

Know exactly
how much you need.

Precise quantity and cost calculators for home and DIY projects. Enter your measurements, get accurate results, material lists, and costs 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.

Decking

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

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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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Why CalcBooth

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