Classic tool
Mortar Calculator
Estimate mortar quantity, waste allowance and bag count for tile and wall projects.
Use this mortar calculator to estimate how many kilograms and bags you need for floors, walls, exterior areas and larger tile installations. It turns surface area, average consumption per square meter, bag weight and waste allowance into a practical purchasing estimate.
The calculation combines the area entered, the average mortar coverage and an extra margin for cuts, waste and leveling adjustments. That makes it useful for remodeling, site planning, material shopping and checking quantities before installing ceramic tile, porcelain tile or wall coverings.
The result shows the estimated dry mortar in kilograms, the number of bags rounded up, the adjusted area after waste and the approximate coverage per bag for your scenario. Always compare with the manufacturer technical sheet because real coverage changes with substrate, trowel notch, layer thickness and tile format.
Use clear inputs to get a more useful result.