The Carpet Calculator helps you calculate how much carpet you need, in square feet and square yards. Simply fill in the fields above and click Calculate to get an instant result.
This calculator is part of Calculate Wiki’s Construction Calculators collection.
What You’ll Need
- Room Length (ft)
- Room Width (ft)
- Waste Allowance (%)
- Carpet Price ($/sq yd)
Formula Used
Carpet needed (sq ft) = Length × Width × (1 + Waste % ÷ 100)
Square yards = Square feet ÷ 9
Example Calculation
Using example inputs — Room Length = 14 ft; Room Width = 12 ft; Waste Allowance = 10 %; Carpet Price = 0 $/sq yd — the Carpet Calculator returns:
| Value | Result |
|---|---|
| Area needed | 184.8 sq ft |
| In square yards | 20.53 sq yd |
20.53 sq yd of carpet. 184.8 sq ft including waste allowance.
Helpful Information
Results from the Carpet Calculator are estimates based on standard formulas used in the construction calculators field. For projects with significant cost, health, or safety implications, consider verifying results with a qualified professional.