Home Improvement Calculators

Use these calculators to estimate quantities before you buy. Each page includes a matching practical guide.

Estimate paint gallons for room walls with coats and waste.

Estimate floor area and number of boxes with waste.

Estimate tile quantity based on room size and tile dimensions.

Estimate concrete volume in cubic yards for slabs and pads.

Estimate deck boards based on dimensions, board size, and spacing.

Estimate drywall sheets for walls and optional ceiling.

Estimate insulation rolls or batts from total area coverage.

Estimate shingle bundles using roof area, pitch factor, and waste.

Estimate fence panels and posts from run length and spacing.

Estimate wallpaper rolls from wall area and roll coverage.

Estimate paver count from patio dimensions and paver size.

Estimate mulch volume in cubic yards from area and depth.

Estimate gravel volume in cubic yards for paths and bases.

Estimate topsoil volume in cubic yards for lawn leveling and beds.

Estimate paint needed for ceilings with coat count and waste.

Estimate baseboard pieces from room perimeter, board length, and waste.

Estimate seed bags from lawn area, coverage, and overseed waste.

Estimate slab count from countertop area and slab coverage.

Estimate backsplash tile quantity from wall dimensions and tile size.

Estimate attic insulation bags from area and product coverage.