Free Grout Calculator – Grout Weight in Lbs & Kg
Free grout calculator to estimate grout weight in pounds and kilograms for any tile project. Enter tile size, joint width, and area to calculate grout bags needed.
Grout Calculator Guide
The Grout Calculator estimates the weight of grout needed for any tile installation. Enter your tile dimensions, thickness, joint width, grout type, and total tile area to calculate how many pounds or kilograms of grout you need.
Grout type matters: unsanded grout is used for joints less than 1/8 inch wide (common for wall tiles and mosaic tiles), while sanded grout is used for joints 1/8 inch and wider (most floor tiles). Using the wrong type can cause cracking or an improper bond.
Always buy 10–15% more grout than calculated to account for mixing waste and touch-up repairs. Grout color can vary slightly between bags, so purchase all grout for a project at once from the same batch. Seal grout after installation to prevent staining and moisture penetration.