🖼️ Wallpaper Calculator
Calculate the exact wallpaper quantity needed
Room Dimensions
m
m
m
Doors & Windows
Wallpaper Roll Specs
m
m
5%
10%
25%
Waste for patterns, cutting, and matching
Common standard sizes:
Result
6
rolls needed
Wall Area
50.4
m²
Net Area
44.2
m²
Roll Coverage
5.3
m²
Room Preview
5m × 4m
Wall Perimeter: 18m
Calculation Details
| Total Wall Area | 50.4 m² |
| Door Area | -1.8 m² |
| Window Area | -2.4 m² |
| Net Area Needed | 46.2 m² |
| Waste Allowance (10%) | +4.6 m² |
| Final Area | 50.8 m² |
Important Tips
- Buy at least one extra roll as backup
- Ensure all rolls are from the same batch (batch numbers match)
- For large patterns, you may need more waste (15-20%)
Related Home Tools
Frequently Asked Questions
Calculate wall area (perimeter x height), subtract windows and doors, divide by roll area.
Standard roll 0.53m x 10m = 5.3 sqm. But calculate 4.5 after waste and pattern repeat.
Yes, add 10-15% for waste, mistakes, and pattern repeat. Better than shortage.
Ranges 50-500 SAR per roll by quality and brand. Installation 15-30 SAR/sqm.
Wallpaper gives better texture, designs, and hides flaws. Paint is cheaper and easier to change.