Home Improvement calculators

Square footage, waste allowance, and boxes to buy — with an optional cost estimate.

How many tiles for your floor, shower, or backsplash — any tile size, waste included.

Cubic yards and bags for any bed size and depth — plus bulk-vs-bagged buying math.

Pavers, base and bedding sand for a patio — with the cutting waste your pattern actually costs.

Square feet, pieces and whole pallets — plus the spare sod that rounding up actually costs you.

Cubic yards and tons for any area and depth — loose fill or compacted base.

Cubic yards and bags for beds, lawns, and topdressing — with the right depth for each job.

Slab volume in cubic yards and bags — with the order margin that prevents a short pour.

Rolls to buy for any room — pattern repeat and double-roll math handled for you.

Sheets for walls and ceiling with waste included — plus screws, tape, and mud guidance.

Posts, panels, and gates for any run — with spacing and corner math done right.

The right AC size for any room — Energy Star base, sun, ceiling height, and occupancy included.

Pounds of seed for a new lawn or overseeding — rates for five common US grasses.

Roof area from the footprint and the pitch, then squares and bundles of shingles.

Deck boards, joists and fasteners from the deck size, board width and gap.

Carpet area with waste, and how the roll width decides where the seams land.

How much insulation an area takes at a target R-value, in batts or blown depth.

Rise, run and stringer length from a floor-to-floor height, against the code limits.

Pool volume in gallons or litres, including the sloping floor most pools have.

Board feet for hardwood priced by volume, where nominal and actual sizes differ.