Concrete calculator
Enter dimensions, quantity, and waste to get volume, weight, bag counts, and estimated cost.
Save an alternative to compare it with the current calculation.
Transparent calculation
Use supplier pricing and site-specific waste assumptions before purchasing. Bag yields vary by product; verify the coverage shown on the package.
Build & measure
Useful workflows
Move from measured area to reinforcement, concrete order, and finish protection.
Estimate the deck surface, fastening system, and finish as separate purchasing decisions.
Measure the room once, then plan wallboard, paint, flooring, and trim.
Lay out walls, lumber, siding, decks, and fences with project-specific measurements.
Convert roof geometry and footprint measurements into slope and material-planning quantities.
Estimate finish and envelope materials while accounting for dimensions, openings, coverage, and waste.
Plan concrete, reinforcement, brick, block, mortar, grout, and retaining-wall quantities from measured dimensions.
Convert outdoor shape, area, trench, depth, and coverage into practical project quantities.
Create preliminary room-load and airflow estimates with visible geometry and user-entered assumptions.
Convert measured stock geometry into weight and shop-layout quantities using visible assumptions.