Free Tools
Interactive calculators built for bathroom design, remodeling, and home improvement how-tos. No sign-up, no downloads — enter your numbers and get an answer you can act on.
Tile Calculator
Find how many tiles and boxes you need for a floor or shower wall, with a waste allowance for cuts and breakage.
Grout Calculator
Estimate how many pounds of grout and how many bags to buy based on tile size, joint width, and joint depth.
Bathroom Exhaust Fan CFM Calculator
Get the right exhaust fan CFM for your bathroom size, using HVI sizing rules for area and fixture count.