Square Footage Calculator
Area in sq ft, sq yd and m² for rooms, triangles, circles and L-shapes.
Construction Calculators
Material estimators for home projects — concrete, gravel, paint, tile, flooring and square footage — that turn measurements into quantities to buy, with waste allowances explained. Estimates only, not engineering advice.
Area & lumber
Concrete & masonry
Concrete Calculator
Cubic yards and 40/60/80 lb bag counts for slabs, columns and steps.
Landscaping materials
Gravel Calculator
Cubic yards and tons of gravel from length, width and depth.
Walls & flooring
Paint Calculator
Gallons (and quarts) of wall paint after doors, windows and coats.
Flooring Calculator
Boxes of laminate, vinyl or wood flooring from room areas and waste.
Tile Calculator
Tiles and boxes from area, tile size, grout joint and waste.
No calculators match that filter. Try the site search or browse all tools.