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Carpet Calculator

Room area converted to square yards (how carpet is sold), plus a waste allowance for seams and irregular rooms.

Carpet is sold by the square yard, not square foot

Divide square feet by 9 to get square yards — carpet retailers price and sell by the yard, so converting your room measurement to the right unit avoids confusion when comparing quotes.

Roll width affects seam placement

Carpet typically comes in 12-foot-wide rolls — rooms wider than that need a seam, and an installer can help plan seam placement in a low-traffic area rather than the room's center.

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BuildRight

Carpet Calculator

Room area converted to square yards (how carpet is sold), plus a waste allowance for seams and irregular rooms.

Room area (sq ft)

Waste factor (%)

Carpet needed

24.444 yd²

Carpet is sold by the square yard, and comes in standard roll widths — a flooring pro can account for seam placement.

What you entered

Room area (sq ft): 200Waste factor (%): 10

1
Room area with 10% waste
200 × 1.10= 220 sq ft
2
Convert to square yards (carpet is sold by the yard)
220 ÷ 9= 24.4444 yd²

Result

Carpet needed: 24.444 yd²

A 200 sq ft room needs about 24.444444444444446 square yards of carpet.

Carpet is sold by the square yard, not square foot

Divide square feet by 9 to get square yards — carpet retailers price and sell by the yard, so converting your room measurement to the right unit avoids confusion when comparing quotes.

Roll width affects seam placement

Carpet typically comes in 12-foot-wide rolls — rooms wider than that need a seam, and an installer can help plan seam placement in a low-traffic area rather than the room's center.