Calculadora de Alfombra — ft to sq yd, rolls, cost

Dimensiones en pies, pulgadas · Area in sq yd · Roll length, seams & cost
CRI 104 / 105
Cambiar a version metrica →

Como usar esta calculadora

Ingrese las dimensiones de la habitacion (rectangle, L-shape, or custom area). Select carpet roll width (12 ft or 15 ft standard). La calculadora determines the linear feet of carpet off the roll, number of seams, padding area, and tack strip perimeter. Waste is calculated based on seam matching.

Anchos de rollo — 12 ft (estandar) o 15 ft. Rollos mas anchos reducen costuras.
Base — misma area que la alfombra. Las tiras de fijacion recorren el perimetro de la habitacion menos las entradas.

12 ft roll width 15 ft roll width 1 sq yd = 9 sq ft Padding 7/16″
Forma de la habitacion y dimensiones
ft in
ft in
5% minimal seams · 10% typical · 15% pattern match
%
Diagram
Secciones opcionales:
$Material Prices
$
$
$
Instalacion
$
Typical: $4–8/sq yd basic · $8–14/sq yd with furniture moving
Resultados
Carpet
Alfombra necesaria
sq yd
Area del piso
ft²
Roll Length
linear ft
Costuras
seam(s)
Padding & Accessories
Padding
sq yd
Tiras de fijacion
pcs (4 ft)
Perimetro
ft

Calculos guardados

HoraFormaArea ft²Sq YdRoll ftCosturasCost
Sin calculos guardados

How to Calculate Carpet for a Room

Esta calculadora de alfombra estimates the square yards of carpet needed, linear feet off the roll, number of seams, padding area, and tack strip quantity. Ingrese las dimensiones de la habitacion en pies y pulgadas, choose your roll width (12 ft standard or 15 ft wide), and adjust waste allowance.

Formulas

Square yards = (length × width) / 9. Linear feet = room length × ceil(room width / roll width). Seams = ceil(room width / roll width) − 1. Tack strips = perimeter / 4 (sold in 4 ft pieces). Padding = same area as carpet.

Roll Width Tips

Standard carpet rolls are 12 ft wide. If your room is 12 ft or narrower, you avoid seams entirely. 15 ft wide rolls cover wider rooms seamlessly. Always run carpet lengthwise along the longest dimension for fewer seams.

Preguntas frecuentes

Why sq yd instead of sq ft? Carpet is traditionally priced and sold by the square yard in the US. 1 sq yd = 9 sq ft. Do I need extra for pattern matching? Yes, add 10-15% waste for patterned carpet to align the pattern across seams.

Misha Noyr, M.Eng.

Misha Noyr, M.Eng.

Civil Engineer · 15+ yrs · structural design, geotechnics. Full bio →