Estimate whole wallpaper rolls
Enter your actual wall and roll measurements. Choose US customary or metric units explicitly; no standard roll size is assumed.
Educational purchasing estimate, not an exact quantity or installation plan. Check the product label or specification, batch, pattern direction, adhesive and manufacturer instructions. Wall conditions, pattern matching and installation vary. Openings and offcuts are not optimised. Consult a qualified professional when preparation or safety requires technical assessment.
Clear this calculation and switch?
Changing locale or units clears every field and the current result. Values are not converted.
How the calculation works
Measurements are converted exactly to millimetres. Whole strips and rolls use Math.ceil; strips per roll use Math.floor.
Fictitious example
Examples are loaded only after the Use example action.
Limitations
Openings, multiple heights, offset and half-drop matching, and offcut optimisation are outside the calculation. Price, cost, currency and budget are outside this product and must not be inputs, outputs, examples, metadata or persisted data.
Methodology
Version wallpaper-en-v1, reviewed 24 August 2026.