Wallpaper Calculator
Estimate wallpaper rolls needed from room dimensions
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📊 Result Chart
About Wallpaper Calculator
The biggest worry buying wallpaper is overbuying or running short. Our calculator estimates exact rolls based on wall dimensions and wallpaper size, deducting doors and windows.
How to Use
- Enter wall length and height
- Select wallpaper width
- Click Calculate to see rolls needed
FAQ
How much does one roll cover?
Standard: 0.53m×10m ≈ 5.3㎡. With pattern waste 10-15%, effective ≈ 4.5㎡.
How much extra to buy?
10-15% extra. Complex patterns need 15-20% buffer.
What is Wallpaper Calculator?
Wallpaper Calculator is a free online tool that runs entirely in your browser. No download or signup needed — enter Wall Length and Wall Height to get results instantly. All data is processed locally.
Use Cases
- Convert units quickly when working with international measurements
- Translate metric and imperial units while reading foreign materials
- Verify conversion results in engineering or scientific work
- Quick conversions on mobile without searching for formulas
Key Features
- Completely Free: No registration, no limits
- Privacy Safe: Data never leaves your browser
- Cross-Platform: Any modern browser
- Zero Dependencies: Open and use