Bath & Bathroom Tools
Free, practical calculators for a better bathroom — estimate your water use, size a shower curtain, plan paint, grout, and tile, and budget a full renovation. Planning estimates only.
Bathroom Water Usage Calculator
Add up your showers, baths, toilet, and faucets to see how many gallons your bathroom uses a day, month, and year — with the cost and a per-fixture breakdown of your biggest water draws
Shower Curtain Size Calculator
Enter your opening width and curtain type to get the right curtain and liner size, the number of rings, and the rod width — all matched to standard off-the-shelf sizes
Bathroom Paint Calculator
Turn your room dimensions, coats, doors, and windows into the paintable area and the exact gallons to buy — with standard deductions and a moisture-resistant finish tip for steamy rooms
Grout Calculator
Enter your area, tile size, thickness, and joint width to get the pounds of grout and the number of 25-pound bags, using the standard tile-industry coverage formula
Bathroom Tile Calculator
Work out how many tiles and boxes to buy for a floor or wall from the area, tile size, and waste allowance — tiles needed with overage, plus whole boxes to carry home
Bathroom Renovation Cost Calculator
Choose your size and quality tier, add scope items like a new tub, vanity, or plumbing move, and see a low-to-high cost range with a clear line-item breakdown