Materials, measurements and project estimates for common home and construction tasks. All tools are free and work directly in your browser.
Popular tools people often start with in this category.
Estimate cubic yards of concrete for a rectangular slab and add an optional waste allowance.
Estimate deck area and project cost from deck dimensions, cost per square foot and a contingency percentage.
Estimate gallons of wall paint from room dimensions, wall height, coats and paint coverage.
This focused collection is interlinked so visitors can move directly between related tools.
Calculate concrete for a slab in cubic yards and cubic feet, add waste, and estimate 40 lb, 60 lb or 80 lb premix bags from length, width and thickness.
Estimate cubic yards and approximate tons of gravel from area and depth. Get instant results with formulas, examples and no sign-up.
Estimate cubic yards of mulch from bed area and desired depth. Get instant results with formulas, examples and no sign-up.
Estimate gallons of wall paint from room dimensions, wall height, coats and paint coverage. Get instant results with formulas and examples.
Estimate flooring area and purchase quantity with a waste allowance. Get instant results with formulas, examples and no sign-up.
Estimate the number of rectangular tiles needed for a floor or wall area, including waste. Get instant results with formulas and examples.
Estimate roofing squares and bundles from roof area and waste percentage. Get instant results with formulas, examples and no sign-up.
Estimate drywall sheet count from wall dimensions, room count, sheet size and waste allowance. Get instant results with formulas and examples.
Estimate deck area, decking linear feet and board count from deck dimensions, board size, spacing and waste.
Estimate fence pickets from fence length, picket width and gap between pickets. Get instant results with formulas, examples and no sign-up.
Browse the complete set of tools in this category.
Estimate asphalt volume and tons from area, compacted depth and material density.
Calculate lumber board feet from thickness, width, length and quantity.
Estimate the number of bricks needed for a wall from wall area, brick dimensions, mortar joint and waste.
Estimate concrete masonry units (CMU) needed for a wall from wall dimensions, block face size and waste.
Estimate cubic yards of concrete for a rectangular slab and add an optional waste allowance.
Calculate cost per square foot or total project cost from area and total price.
Calculate cubic feet and cubic yards from length, width and height measurements.
Convert rectangular dimensions in feet to cubic yards for soil, gravel, concrete and landscaping materials.
Estimate deck area and project cost from deck dimensions, cost per square foot and a contingency percentage.
Estimate deck area, decking linear feet and board count from deck dimensions, board size, spacing and waste.
Estimate drywall sheet count from wall dimensions, room count, sheet size and waste allowance.
Estimate fence pickets from fence length, picket width and gap between pickets.
Estimate flooring area and purchase quantity with a waste allowance.
Estimate cubic yards and approximate tons of gravel from area and depth.
Estimate grout volume from tile size, joint width, joint depth and tiled area.
Calculate total lawn area from up to four rectangular sections and convert square feet to acres.
Estimate cubic yards of mulch from bed area and desired depth.
Estimate gallons of wall paint from room dimensions, wall height, coats and paint coverage.
Estimate paver count from project area, paver size and waste allowance.
Estimate rectangular pool water volume in gallons from length, width and average depth.
Estimate roofing squares and bundles from roof area and waste percentage.
Estimate sand volume and approximate weight from project dimensions and material density.
Estimate siding square footage and squares from exterior wall dimensions, openings and waste.
Calculate rectangular area in square feet from length and width measurements in feet.
Estimate stair riser count, actual riser height and tread run from total rise and target riser height.
Estimate the number of rectangular tiles needed for a floor or wall area, including waste.
Estimate cubic yards of topsoil from area and desired depth.
Estimate wallpaper rolls from wall area, roll coverage and waste allowance.
Materials, measurements and project estimates for common home and construction tasks. Use these tools for quick estimates, comparisons and everyday planning.
Concrete, paint, flooring, gravel and square-footage calculators are all part of the same ERICH Calculators library for home and construction projects.
Explore focused calculator clusters with related tools, formulas, examples and long-tail guides.
Concrete volume, slabs, footings, blocks, bricks, pavers and related material quantities.
Explore topic →Home & ConstructionFloor area, tile quantities, paint coverage and interior finishing material estimates.
Explore topic →Home & ConstructionGravel, mulch, topsoil, sand, lawn and outdoor project material estimates.
Explore topic →Learn the method behind popular calculators in this category.
Concrete is normally ordered by volume, so the key is to convert the dimensions of a slab, footing or other pour into cubic yards. A small measurement error can become expensive on a larger project.
Read guide →Mortgages & LoansA fixed-rate mortgage payment may stay the same from month to month, but the way that payment is divided between interest and principal changes over time. That changing split is the basic idea behind mortgage amortization.
Read guide →A concrete slab 12 feet long, 10 feet wide and 4 inches thick has a volume of about 40 cubic feet, or roughly 1.48 cubic yards before waste. Use consistent units and convert inches to feet before multiplying dimensions. For paint and flooring, first establish the surface area, then adjust for product coverage, extra coats, cutting loss or waste. These estimates help plan purchases but do not replace structural specifications or contractor measurements.