Wallpaper Calculator
Calculate how many rolls of wallpaper you need for any room
Results
Total Wall Area
- sq ft
Minus Openings
- sq ft
Coverable Area
- sq ft
Rolls Needed
- rolls
With 10% Extra
- rolls
Wallpaper Tips
- Always buy an extra roll for pattern matching waste and future repairs
- Patterned wallpaper with a large repeat requires more rolls — add 15-20% instead of 10%
- Standard door opening: ~21 sq ft (3ft x 7ft)
- Standard window opening: ~12 sq ft (3ft x 4ft)
- Remove old wallpaper completely before applying new — do not layer
- Peel-and-stick wallpaper is easier for beginners and renters