---
title: "Wallpaper Calculator"
description: "Rolls needed for your walls — with pattern repeat and openings. Free."
image: "https://nestingcalc.com/og-default.png"
url: "https://nestingcalc.com/wallpaper-calculator/"
locale: "en"
---

# Wallpaper Calculator

Rolls needed for your walls — with pattern repeat and openings. Free.

Enter wall size, roll dimensions, pattern repeat and door/window area. The calculator works out how many full strips fit per roll (accounting for pattern matching) and how many rolls to buy.

Interactive calculator (open in browser): [https://nestingcalc.com/wallpaper-calculator/](https://nestingcalc.com/wallpaper-calculator/)

## FAQ

How does pattern repeat affect the count?

With a repeating pattern, every strip must start at the same point of the design, so strips are cut to a multiple of the repeat. A 64 cm repeat on a 2.5 m wall forces 2.56 m strips — wasting up to 6 cm per strip.

Why buy rolls from the same batch?

Colour varies slightly between print runs. Check that all rolls share a batch number, and buy one spare roll — matching a discontinued pattern later is nearly impossible.

Should I subtract doors and windows?

Enter their total area and the calculator nets them out. However, the strips above doors and below windows still consume full-length strips, so keep the deduction conservative.

## Related calculators

-   [Tile Calculator](https://nestingcalc.com/tile-calculator/)

    Tiles, boxes and cost for any room — with grout spacing and waste. Free.

-   [Flooring Calculator — Laminate & Vinyl Plank](https://nestingcalc.com/flooring-calculator/)

    Planks, boxes and cost for laminate or vinyl floors — with offcut reuse between rows. Free.

-   [Sheet Cutting Calculator](https://nestingcalc.com/sheet-cutting-calculator/)

    Optimize 2D cuts for plywood, MDF, glass and sheet metal — minimize waste, free.

## Related guides

-   [How Many Wallpaper Rolls Do I Need? Pattern Repeat Math](https://nestingcalc.com/guides/wallpaper-roll-estimating/)

    Wallpaper is sold in rolls, hung in drops, and ruined by mismatched patterns. The arithmetic that gets the count right the first time.

-   [Tile Waste Factor: How Much Extra Tile to Order (by Pattern)](https://nestingcalc.com/guides/tile-waste-factor/)

    Waste percentages for straight, offset, diagonal, herringbone and large-format layouts, plus dye lots and spares — so you buy right the first time.

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