Wallpaper Calculator

Measure total wall area, subtract doors/windows, divide by roll coverage (56 sqft per double roll). Add 10-20% for pattern matching waste.

Pattern repeat is the distance before the design repeats. Larger repeats (21-24 inches) create more waste. Straight matches are easier; drop matches need extra rolls.

One packet covers approximately 4-5 rolls. Pre-pasted wallpaper only needs water activation. Non-woven wallpaper uses paste applied to the wall instead.

The Wallpaper Calculator is an online tool that lets you calculate wallpaper rolls needed with pattern repeat waste and cost estimates. It is part of NexTool's collection of free tools designed to help you work faster and more efficiently.

Using the Wallpaper Calculator is simple: visit the tool page, enter your data or input into the provided fields, and get instant results. Follow the controls on the page. Some functions require sign-in or a paid plan; see Pricing for limits.

The Free plan includes 10 tool uses per day. Some features require an account or a paid plan. Check the controls on the tool page and Pricing for the applicable limits.

The Wallpaper Calculator returns results based on the inputs and the tool methodology. Check assumptions, units and source dates. Treat projections as estimates. For critical decisions, always consult a qualified professional.

Yes, the Wallpaper Calculator is fully responsive and works perfectly on smartphones, tablets, and desktop computers. Simply open NexTool in your mobile browser and navigate to the tool — no app download required.