Free Construction & Home Improvement Calculators

Free construction and home improvement calculators — concrete, gravel, tile, deck, fence, wallpaper, topsoil, mulch, and more.

All Calculators

Concrete

Slabs, footings, columns, stairs, walls, cost — everything for concrete pours.

Gravel & Stone

Driveways, paths, pea gravel, crushed rock — tons, yards, and bags.

Tile & Grout

Floor, wall, backsplash — tile count, grout bags, installation cost.

Deck

Boards, joists, beams, and full deck material lists.

Fence

Posts, panels, concrete — wood, vinyl, chain-link, composite.

Wallpaper

Rolls needed for any room including pattern repeat.

Topsoil

Lawn, raised beds, grading — cubic yards and tons.

Mulch

Landscape beds, tree rings — yards and bags.

Blocks

CMU and cinder block walls — count, mortar, grout.

Area & Square Footage

Rooms, lots, acres — measure any space.

Roofing

Roof area, pitch, and material — squares, shingles, slope.

Guides

How-to walkthroughs that explain the numbers behind the calculators.

How It Works

  1. 1

    Pick the calculator that matches your project from the list above.

  2. 2

    Enter your dimensions — length, width, depth, or area.

  3. 3

    Get an instant breakdown in cubic yards, bags, tons, or cost.

Frequently Asked Questions

Are these calculators free?

Yes — every calculator on BuildCalc is 100% free. No sign-up, no usage limits, no hidden fees.

Do the calculators work on mobile?

All calculators are fully responsive and work on phones, tablets, and desktop browsers.

Are the results accurate?

Results are based on standard industry formulas and typical material densities. Always verify with your supplier and add a 5–10% waste factor for real-world projects.

Do you store my data?

No. All calculations happen in your browser. We never upload or store the numbers you enter.

Can I get a cost estimate?

Most calculators support a cost-per-unit input so you can get a project total based on your local prices.