Area Calculator › Carpet

Carpet Calculator

Work out how much carpet a room needs in square yards, and the cost, since carpet is usually priced by the square yard.

Carpet in square yards
ft
×
ft
$
Result
Square yards20 sq yd
Carpet cost600 $
Quick answer
Carpet is usually sold by the square yard, and there are 9 square feet in a square yard. A 15 by 12 ft room is 180 sq ft, or 20 sq yards. At $30 a yard that is $600 for the carpet. Add about 10 percent for cuts, seams and matching the pile direction.

How it works

square yards = length × width ÷ 9cost = square yards × price per sq yd
length
room length in feet
width
room width in feet
9
square feet in a square yard

Order a little extra, around 10 percent, for waste, seams and to keep the pile running the same way. Awkward shapes and stairs need more.

Frequently asked questions

How many square yards of carpet for a 15 by 12 room?

20 square yards, from 180 sq ft divided by 9.

How many square feet in a square yard?

Nine.

How much carpet do I need with waste?

Add about 10 percent to the room figure for cuts and seams.

How is carpet priced?

Usually per square yard, sometimes per square foot; this uses per square yard.