🏗️About Construction Calculators
Whether you're a contractor estimating concrete for a slab foundation, a homeowner calculating how many tiles to order for a bathroom renovation, a roofer working out shingle quantities for a new build, or a painter estimating paint coverage for a commercial project — these construction calculators give you accurate material quantities with the waste factor already built in, so you order right the first time.
Start with the Concrete Calculator for any slab, column, or footing pour — it calculates volume in cubic metres and cubic yards, adds the recommended 10% waste factor, and estimates bags of premix concrete needed. The Flooring Calculator handles all tile shapes (square, rectangular, hexagonal, herringbone pattern) and adds pattern-specific waste factors automatically.
What makes these tools more useful than a basic area calculator: every result includes a material list with quantities, a cost estimate field where you enter your local price per unit, and a total project cost. The Roof Pitch Calculator outputs both the pitch ratio and the angle in degrees, which is what most roofing material spec sheets require. All calculators use both metric and imperial units — switch between the two without re-entering your measurements.