UK home and DIY quantity calculators
Estimate paint, wallpaper, tiles, flooring, concrete, gravel, fencing and decking from measured dimensions.
Choose a home & diy calculator
Paint quantity and tin count calculator UK
Estimate litres and whole tins from measured area, coats and manufacturer coverage.
Home & DIYWallpaper rolls for a wall calculator UK
Estimate full drops and rolls using wall width, drop height and effective pattern repeat.
Home & DIYTile count and box quantity calculator UK
Calculate whole tiles and boxes from area, tile size and a chosen cutting allowance.
Home & DIYFlooring pack and fitting cost calculator UK
Estimate flooring packs and total material-plus-fitting cost from measured area.
Home & DIYConcrete slab volume calculator UK
Calculate a rectangular slab’s concrete volume from metres and millimetres.
Home & DIYGravel volume and tonnage calculator UK
Estimate aggregate volume and mass using a supplier’s bulk density.
Home & DIYFence panel and post count calculator UK
Estimate standard bays along one straight run with a chosen panel and post width.
Home & DIYDecking board quantity calculator UK
Estimate board rows and stock boards for a rectangular deck.
Home & DIYWall area after openings calculator UK
Measure rectangular wall area and subtract the total doors and windows you supply.
Home & DIYFloor area cost from square feet calculator UK
Convert a quoted square-foot area to square metres and apply a metric supply or fitting rate.
Home & DIYWhere to start
Measure the project, then enter the actual coverage or pack size from the supplier. Decide any cutting or waste allowance explicitly instead of treating a generic percentage as a material standard.
UK data and coverage
UK-friendly metric and imperial conversions are provided. Quantities are geometric estimates, not structural designs, permission checks or guarantees of material performance.
Each calculator explains the formula, includes a worked example and identifies the assumptions that can affect your result. Official rule tables and dated price references are linked on the relevant pages.
Read the data sources and calculation methodology or browse all UK calculators.