Wallpaper Calculator
Wallpaper Calculator
Estimate whole drops and rolls with pattern repeats.
Wallpaper rolls are constrained by full height drops and pattern matching. Dividing wall area by roll area can miss those losses.
Enter the wall heights, roll dimensions and pattern repeat. Review whole drops for each height before comparing the roll quantity with the room schedule.
How to use Wallpaper Calculator
- Choose measurement unit.
- Enter roll width, roll length, vertical pattern repeat, trim allowance per drop, ordering allowance and price per roll.
- Add the entries in wall schedule as separate rows. Include wall, width, height and quantity for each row.
- Select Calculate estimate. Read the returned values alongside the assumptions below before copying, exporting or acting on the result.
Why choose this tool?
Counting drops gives a more practical purchase estimate when the pattern repeat consumes part of every cut.
Before you use the result
Whole-height drops are counted. Doors and windows are not deducted, and leftover drops are not shared between different heights.
Questions about Wallpaper Calculator
Are windows and doors deducted?
No. This calculation retains whole height drops. Openings and reusable offcuts need a separate practical hanging plan.
What should I check before using Wallpaper Calculator?
Check Measurement unit, Roll width, Roll length and Vertical pattern repeat. Use the exact units shown beside the controls and replace any example values with your own inputs.
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