Know how much to buy before you buy it.

Free calculators for do-it-yourself home improvement projects. Enter your measurements and get the number of bags, cubic yards, sheets or boxes you need, plus an estimated cost.

Project calculators

Pick your project. Every calculator is free to use, works on your home computer or phone, and needs no sign-up.

Concrete & masonry

Concrete Calculator

Slabs, pads and footings. Bags and cubic yards.

Ready to use

Concrete Slab Cost Calculator

Estimate what your slab will cost to pour.

Coming soon

Concrete Block Calculator

How many blocks for your wall.

Coming soon

Yard & landscaping

Mulch Calculator

Bags or cubic yards for your garden beds.

Coming soon

Gravel Calculator

Driveways, paths and drainage. Yards and tons.

Coming soon

Topsoil Calculator

New lawns, raised beds and leveling.

Coming soon

Decorative Stone Calculator

Bags of river rock, lava rock or landscape stone to cover your area.

Coming soon

Paver Calculator

Pavers plus gravel and sand base for patios.

Coming soon

Deck Board Calculator

Boards, screws and spacing for your deck.

Coming soon

Indoor

Drywall Calculator

Sheets, mud, tape and installation cost.

Coming soon

Tile Calculator

Tiles and boxes for floors and walls.

Coming soon

How it works

Three steps from tape measure to shopping list.

  1. Measure your spaceLength, width and depth. Feet and inches are fine.
  2. Enter the numbersPick your calculator and type in your measurements.
  3. Get your shopping listSee exactly how much to buy, with a little extra for safe measure.