Construction & Engineering

Material estimators, load calculators, conversion tools, and project planning resources for professionals.

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Free construction calculators and material estimators

Explore 26 free online construction calculators for concrete, cement, gravel, brick, tile, paint, lumber, square footage, material quantities, schedules, and preliminary project costs. Enter measured dimensions and select appropriate units to prepare a working estimate.

Construction quantities are planning estimates, not engineered designs or supplier quotes. Verify field measurements, drawing dimensions, waste allowances, material specifications, structural requirements, local building codes, labor, taxes, and delivery costs before ordering or building.

Start with common estimators for area, concrete, tile, gravel, paint, and project cost.

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Dedicated landing pages for common calculator topics in construction & engineering.