About Home Improvement Calculator

What is Home Improvement Calculator?

Home Improvement Calculator is a free site with 10 tools in English and Spanish. Work out how much paint, tile, flooring or concrete you need before you go to the store.

Tools on this site

• Paint calculator: Gallons of paint for a room, with doors, windows and coats.
• Tile calculator: Tiles and boxes for a floor, with extra for cuts.
• Flooring calculator: Boxes of laminate, vinyl plank or hardwood for a room.
• Drywall calculator: Sheets of drywall and screws for the walls and ceiling of a room.
• Concrete calculator: Cubic yards and 80 lb bags of concrete for a slab.
• Deck board calculator: Deck boards and screws for a rectangular deck.
• Wallpaper calculator: Rolls of wallpaper for a room, allowing for pattern matching.
• Baseboard calculator: Linear feet and pieces of baseboard or trim for a room.
• Mulch calculator: Cubic yards and bags of mulch or soil for a garden bed.
• Gravel calculator: Cubic yards and tons of gravel for a path, patio or driveway.

See all tools · Home Improvement Calculator

How are the results checked?

Every page shows its formula in plain words, with a worked example, so you can check the math yourself.

Automated tests check the example in each page's opening sentence against the tool itself, so the text and the tool can't disagree.

Results are estimates. Read the disclaimer.

What happens to the numbers I enter?

The tools run in your browser. The values you type are not sent to our servers. The site is free because it shows ads; the privacy policy explains the cookies they use. Privacy policy.

How do I report an error?

Found a mistake, or want a tool added? Email support@homeimprovement-calculator.com.