Wallpaper Calculator

Stop guessing how many rolls of wallpaper you need. Wallpaper Calculator gives you an exact roll count and cost estimate for any wall — straight or sloped — in seconds.

FEATURES
• Straight wall calculations based on width and height
• Sloping wall calculations using high and low points
• Metric and imperial units, including feet and inches
• Pattern repeat and match mode (straight or offset) for patterned wallpaper
• Waste percentage so you don't come up short
• Optional cost estimation
• Calculation history so you can revisit past projects
• English and Swedish

GO PRO
A one-time purchase - no subscription - removes ads and unlocks:
• Custom roll presets for your usual suppliers
• Unlimited calculation history
• Share and export your results

Built for anyone hanging wallpaper - homeowners, decorators, and installers who want the numbers right the first time.

Disclaimer: All results are estimates based on the measurements you enter. Wall shapes, pattern matching, and supplier roll sizes vary, so always double-check your measurements and confirm final quantities with your wallpaper supplier or installer before purchasing. We're not liable for material shortages, overages, or costs resulting from reliance on these calculations.