Calculadora de papel pintado

Perímetro de habitación Metro (m)

Room height Metro (m)

Opening width total Metro (m)

Ancho del rollo Metro (m)

Largo del rollo Metro (m)

Pattern repeat Centímetro (cm)

Spare rolls

Price per roll opcional

Strips needed: -

Strips per roll: -

Rolls needed: -

Wall area (ref): -

Material cost: -

Notes: -

Wallpaper Calculator

Estimate strips, rolls and cost with the drop/strip method (better for pattern repeats than simple area).

Effective perimeter = perimeter − openings
Drop length = height + repeat; strips/roll = floor(roll length ÷ drop)
Strips needed = ceil(perimeter ÷ width); rolls = ceil(strips ÷ strips/roll) + spare

Plain: repeat ≈0; small pattern ~10 cm; large ~40 cm. Keep one spare roll from the same lot. Runs locally in your browser.