Paint & walls
Wallpaper Calculator
Your measurements : perimeter, height, roll width. Your estimate : rolls to buy, required strips, matched drop length.
How the calculation works
Wallpaper Calculator
Rolls to buy = round up(Required strips ÷ round down(Roll length ÷ Matched drop length))Before you order
- Use the coverage, yield and dimensions printed on your product. Waste allowance is adjustable; real cuts and site conditions may change the order.
- One continuous matched drop per strip. Openings are not deducted because cuts above doors and windows may still require a full drop.
Worked example
- Perimeter
- 18 m
- Height
- 2.5 m
- Roll width
- 0.53 m
- Roll length
- 10.05 m
- Pattern repeat
- 0.32 m
- Trimming allowance per drop
- 0.1 m
- Waste allowance
- 10 %
Rolls to buy 13
Required strips 38