Wallpaper calculator
Measure all the walls you will paper and add their lengths. The standard European roll is 0.53 m wide and 10.05 m long.
How it is calculated
Strips = wall length ÷ roll width, rounded up. Each strip is the wall height plus one pattern repeat. Strips per roll = roll length ÷ strip length, rounded down. Rolls = strips ÷ strips per roll, rounded up. Doors and windows are not subtracted: the offcuts rarely fit.
More calculators: Home and DIY
Paint calculatorHow many litres of wall paint a room needs, after doors and windows, for any number of coats.Tile calculatorNumber of tiles and boxes for a floor or wall, with a waste allowance for cuts.Concrete slab calculatorVolume, weight and number of ready-mix bags for a concrete slab.Laminate and parquet calculatorPacks of laminate or parquet for a room, with a cutting allowance.Stair calculatorNumber of steps, riser height and tread depth for a comfortable staircase, using the step rule 2 risers + 1 tread = 63 cm.Roof pitch calculatorRoof pitch in degrees, percent and the x:12 ratio, from rise and run.Fence calculatorFence panels and posts for a straight run of fence.