DIY Reno Calc

Free home improvement calculators for paint, tile, mulch, square footage and wallpaper. Instant results in your browser — no sign-up, no uploads.

Private by design: Everything runs in your browser. No sign-up, no uploads, no tracking cookies required to use a tool.

Measurement

Calculate square footage for any shape — rectangle, L-shape, triangle, circle or trapezoid. Get instant results in sq ft, sq yd and m².

Also available: Room Square Footage

Calculate exactly how much paint a room needs. Enter room dimensions, doors, windows and coats — get gallons, quarts and estimated cost instantly.

Also available: Paint for Cabinets, Exterior Paint

Calculate mulch in cubic yards and bags for any bed size and depth. Includes a waste allowance and 2 or 3 cu ft bag options — free and instant.

Calculate how many tiles and boxes a floor or wall needs, including a waste allowance for cuts and diagonal layouts. Free, instant, no sign-up.

Calculate how many rolls of wallpaper a room needs, including pattern repeat, doors and windows. Free instant results, no sign-up.