Grout is easy to underestimate. Enter tile size, joint width, and the area being tiled, and get the pounds of grout and number of standard boxes to buy.
Estimates grout from the actual joint volume plus a sanded-grout density factor.
More, smaller tiles mean more joints — the calculator handles both 12x24 planks and mosaics.
Convert pounds into standard 10/25/50 lb boxes so the store trip is one-and-done.
All calculations run locally in your browser.
Tile projects, finished.