How this calculator works
Wallpaper wall area equals room perimeter x wall height. Subtract standard openings, add waste for pattern matching, then divide by roll area.
Wallpaper Calculator
Estimate wallpaper rolls for a room after subtracting doors and windows and adding pattern waste.
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Measuring tips
- Measure twice and record dimensions in feet.
- Add waste for cuts, uneven areas, mistakes, and future repairs.
- Check product packaging for exact coverage and unit size before buying.
FAQ
Is this a final quote?
No. It is a planning estimate. Local pricing, product sizes, and jobsite conditions can change the final purchase amount.
Why include waste?
Most projects need extra material for cuts, overlap, damage, and future touch-ups.
Can I print the result?
Yes. Use the print button to save the estimate or bring it to the store.