Carpet Calculator
Square yards of carpet and cost.
Enter your values
ⓘ Live results
Results
- Carpet needed
- 22 sq yards
- Square feet with waste
- 198 sq ft
- Room area
- 180 sq ft
- Estimated material cost
- $704.00
- Padding needed
- 22 sq yards
Quick answer
Carpet is sold by the square yard in 12 ft rolls, so allow 10–15% waste for seams and offcuts.
Square yards = sq ft ÷ 9
How to use the Carpet Calculator
- 1Measure the room at its widest points.
- 2Add a waste allowance of 10–15%.
- 3Enter your price per square yard.
Worked example
Using the values the calculator loads with:
Inputs
- Room length15 ft
- Room width12 ft
- Waste allowance10 %
- Price per square yard32 $
Results
- Carpet needed22 sq yards
- Square feet with waste198 sq ft
- Room area180 sq ft
- Estimated material cost$704.00
- Padding needed22 sq yards
Frequently asked questions
Why 12 ft rolls?
Standard carpet width — rooms wider than 12 ft need a seam and more waste.
Is padding extra?
Yes, budget separately at $3–6 per square yard.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.