Get the square yardage and cost estimate for your flooring project.
Carpet is typically sold by the square yard and often comes in fixed roll widths, so actual purchased amounts may be higher than the raw calculation — budgeting 10% extra is a common rule of thumb.
It multiplies room length by width to get area, then adds a waste allowance (commonly 5-10%) to account for cuts, pattern matching, and irregular room shapes.
Carpet usually comes in fixed roll widths, so odd room shapes and seam placement mean some material is unavoidably wasted during installation.
Carpet is most commonly priced and sold by the square yard in the US, so this calculator often converts your room's square footage to square yards.