Wallpaper Calculator
How Much Wallpaper Do I Need?
Draw your room and get an instant, exact roll count — no manual maths, no under-ordering.
Open the wallpaper calculatorFree through pattern alignment. Takes about 2 minutes.
Handles pattern repeat
Generic calculators just divide square metres. This one accounts for the extra waste a pattern's repeat distance actually costs you.
Any roll size
Not every roll is 53cm wide and 10m long. Enter the exact numbers from your own label and the roll count adjusts.
Room by room
Draw each wall, including doors and windows, and get a wall-by-wall breakdown — not one rough number for the whole house.
Common questions
Is the wallpaper calculator free?
Yes — drawing your room and getting a roll estimate is free and stays free. You only pay if you want the exact cutting plan, workbench sheets and order list.
Does it work for patterned wallpaper?
Yes, and that's the part most calculators skip. Enter your pattern's repeat distance and the roll count accounts for the extra waste it costs you.
Do I need to create an account?
Not to use the calculator. An account is only needed to pay, and then it just needs an email address — no password.
Can I use a non-standard roll size?
Yes. Enter the exact width and length from your own roll label — the calculator is not locked to the 53cm x 10m standard.
Wallpaper with a repeating pattern? See how pattern repeat affects your roll count →
Only papering one wall? See the feature wall wallpaper calculator guide →
Room has a bay window? See how to measure a bay window →
Want the maths behind it?
See the formula the calculator itself uses, explained step by step.
See how it's calculated →Planning a specific room?
Quoting a client job instead? Try the contractor estimator →
Want to know the cost before you draw? See plans & pricing →