1 calculator
Area & measurement calculators
The starting point for almost every estimate: total square footage of rooms, floors, yards and irregular shapes, with conversions to square yards, square meters and acres.
Once you have the area, carry it into the flooring, paint, mulch or concrete calculators.
Related guides
How to Measure a Room for Flooring, Paint and DrywallA step-by-step guide to measuring a room once and getting floor area, wall area and ceiling area right — for flooring, paint, drywall and tile.Read guide →How Thick Should a Concrete Slab Be?Typical concrete slab thicknesses for patios, sidewalks, driveways, garage floors and shed bases — and how thickness changes how much concrete you need.Read guide →Gravel Driveway Layers ExplainedHow a gravel driveway is built in layers — base, middle and top — with typical stone sizes, depths and how to calculate tons for each layer.Read guide →Roof Pitch ExplainedWhat roof pitch means, how to measure it safely from the attic or ground, pitch-to-angle conversions, and how pitch affects shingles and material quantities.Read guide →Backyard Patio Planning: Materials ChecklistEverything to estimate before building a backyard patio — concrete or pavers, gravel base, sand, edging, retaining walls, mulch borders and lighting.Read guide →