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Wallpaper Calculator with Pattern Repeat

A wallpaper calculator with pattern repeat adds extra drop height for matching. Straight match adds one repeat. Half-drop adds half a repeat. Drops per roll are floor(roll length / drop height). Rolls are ceil(drops needed / drops per roll) with waste percent.

Quick Summary & Direct Answer
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How many rolls with a 32 cm repeat?

A 5 m wide × 2.4 m high wall using a 10.05 m × 53 cm Euro roll at a 32 cm straight repeat needs 2.72 m drops. Three drops fit a roll. Ten drops cover the width, so four rolls before waste, five with 10% extra.

Key Takeaways

  • UK, EU, and US roll presets.
  • Half-drop wastes less than straight on some designs.
  • Doors and windows are not subtracted.

Rolls to buy

5

Drops needed10
Drops per roll3
Drop height2.72 m
Wall area12 m²

Results can be wrong. This calculator is unofficial. Figures can be incomplete, rounded, or not updated. Use them at your own risk and check a tape, datasheet, ball band, or official chart before cutting, mixing, buying, or publishing. A drop is one strip of paper. Pattern waste is estimated as extra height per strip; windows, doors, and centering a large motif can change the roll count. Limits of liability are in the terms of service.

Frequently asked questions

Each next drop is shifted by half the repeat so the pattern nested. Extra height is repeat/2.

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Publisher notes · reviewed 29 October 2026

Repeat increases drop height

Straight match adds one repeat. Half-drop adds half. Drops per roll are floor(roll length / drop height). EU 10.05 m × 53 cm, UK 10 m × 52 cm, US 27 ft × 27 in are presets.

Windows

Openings are not subtracted. Raise waste percent or measure net wall.

Worked examples

  • 5×2.4 m, 32 cm straight, Euro roll, 10% waste

    Drop 2.72 m, three drops per roll, ten drops needed, five rolls with waste.

Limits of this page

  • Paste-the-wall vs paste-the-paper does not change count.
  • Drop patterns with large motifs may need extra for centering.

Sources