Carpet Calculator
Calculate carpet needed for rooms
ft
ft
$
%
Formula
Carpet = L × W × (1 + waste%) / 9 sq yd
Add waste factor for seams and irregular room shapes. Carpet is typically sold by square yard.
Examples
15×12 room
198 sq ft with waste, ~$693 at $3.50/sq ft.
Frequently Asked Questions
About Carpet
Calculate carpet needed for rooms including waste factor and cost estimation. Carpet is typically sold by the square yard (9 sq ft) and comes in standard 12-foot wide rolls. Room shape affects waste—rectangular rooms have minimal waste, while L-shaped or irregularly shaped rooms may require 15-20% extra. Consider the carpet pile direction for consistent appearance across seams. Factor in padding cost, which typically adds $0.50-
.50 per square foot. Installation costs range from
-$3 per square foot depending on complexity. Higher-quality carpet with better pad lasts longer and feels more comfortable underfoot. For high-traffic areas, choose nylon or polyester with a dense pile for durability.