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Create a QR code for a link, Wi-Fi, WhatsApp, contact and more, or read one from a photo.
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Fill in the details to see your QR code.
PNG for phones, chats and websites. SVG and PDF stay sharp at any size, which is best for printing. Tip: point your phone camera at the preview to test it.
3. Style (optional): colors, dots, logo
Choose a photo or screenshot or drag it here
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Wallpaper calculator
How many rolls of wallpaper a room needs, allowing for pattern repeat and openings.
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- No sign-up
- Works on any device
About Wallpaper calculator
Count the rolls of wallpaper a room needs from wall height, perimeter and the pattern repeat, minus doors and windows. A larger pattern repeat wastes more paper, so matching patterns need extra rolls. Check that all rolls share the same batch number so colors match.
How to use Wallpaper calculator
- Enter your numbers above.
- The result updates instantly as you type.
- Change any value to compare different cases.
Why use this tool?
- Private: everything happens in your browser. Nothing you enter is uploaded.
- Free, with no sign-up, no watermark and no limit on how often you use it.
- Works on phones, tablets and computers: Android, iPhone, Windows, Mac and Linux. Nothing to install.
- Available in 10 languages.
Also known as
Frequently asked questions
Why does pattern repeat change how many rolls I need?
Each strip must be matched to the previous one, so you cut off extra length to align the pattern. Bigger repeats mean more waste.
Is Wallpaper calculator free?
Yes. Wallpaper calculator on Toolipedia is free to use, with no sign-up and no watermark.
Is it safe to use?
Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.
Does it work on my phone?
Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.
Do I need an account?
No. Just open the page and use the tool. There's no sign-up and no email needed.