Carpet Calculator
Calculate carpet and pad needed in square yards with seaming and installation cost estimate.
By Konstantin Iakovlev · Updated April 2026 · Source: HomeAdvisor
Square Footage
180 sqft
Square Yards
20.0
Total Project Cost
$1,350.00
Carpet Details
| Room Area | 180 sqft |
| Square Yards | 20.0 |
| Seams Needed | 0 |
| Total Carpet Needed | 180 sqft |
Cost Breakdown
| Carpet | $900.00 |
| Carpet Pad | $180.00 |
| Installation | $270.00 |
| Total Project Cost | $1,350.00 |
Use the Carpet Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
How It Works
A Carpet Calculator determines the amount of carpeting needed to cover a room or space, and often estimates the associated cost. This is crucial for accurate budgeting and preventing over- or under-ordering of materials, saving both time and money on renovation projects.
The calculator typically uses the area formula (length × width) to find the square footage of each room. This total area is then divided by the square footage per roll or piece of carpet, often with an added waste percentage (e.g., 5-15%) to account for cuts and irregularities.
Always measure at the widest and longest points of a room, even if it's irregularly shaped. Don't forget to account for pattern repeats if your carpet has one, as this can significantly increase the required material.
Example: Living Room Carpet $
- 1 A rectangular living room measures 15 feet long by 12 feet wide. The chosen carpet costs $3.50 per square foot, and we'll add a 10% waste factor.
- 2 First, calculate the area: 15 ft × 12 ft = 180 sq ft. Next, add the waste factor: 180 sq ft × 1.10 = 198 sq ft. Finally, calculate the total cost: 198 sq ft × $3.50/sq ft = $693.00.
- 3 The estimated total cost for carpeting the living room, including waste, is $693.00.
- 4 This calculation provides a clear budget for the carpet material, ensuring you purchase enough without excessive waste and understand the total expenditure upfront.
Source: HomeAdvisor · Last updated: April 2026
Frequently Asked Questions
How do I calculate how much carpet I need?
How much does carpet installation cost in 2026?
What type of carpet pad should I use?
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