All material calculators

Choose a task, enter your own measurements and check the stated assumptions. For a whole project, combine material lines in the project planner.


Browse the tools below.

GroundworkConcrete Calculator →Estimate a rectangular concrete pour in cubic metres, cubic yards and cubic feet. GroundworkGravel Calculator →Estimate aggregate volume and mass using your supplier’s bulk density. GroundworkExcavation Calculator →Estimate a rectangular excavation and compare in-situ and loose spoil volume. SurfacesTile Calculator →Convert net surface area into whole packs using the coverage on your product label. SurfacesFlooring Calculator →Convert net surface area into whole packs using the coverage on your product label. SurfacesDrywall Calculator →Convert net surface area into whole sheets using the coverage on your product label. SurfacesInsulation Calculator →Convert net surface area into whole packs using the coverage on your product label. SurfacesPaint Calculator →Estimate paint litres and whole tins from your measured area and product coverage. MasonryBrick Calculator →Estimate bricks for a single wall face with editable brick dimensions and mortar joints. VolumesPipe Volume Calculator →Calculate the volume of a full circular pipe from its internal diameter. VolumesWater Tank Calculator →Calculate rectangular tank capacity in litres, US gallons and imperial gallons. BudgetMaterial Cost Calculator →Estimate one material line including delivery and an optional tax percentage. SurfacesRoofing Area Calculator →Estimate sloped roof surface area from a rectangular horizontal projection and an entered roof pitch. GroundworkFence Panel Calculator →Estimate whole fence panels for one straight run after subtracting gate openings. SurfacesDecking Board Calculator →Estimate stock boards for a rectangular deck with parallel rows and a specified gap. SurfacesWallpaper Roll Calculator →Estimate wallpaper rolls using full drops, trimming and an optional straight pattern repeat. SurfacesPlaster Bag Calculator →Estimate whole bags from surface area, specified thickness and the product’s mixed yield. SurfacesRoom Area Calculator →Calculate floor area, ceiling area and net wall area before choosing flooring or paint quantities.