Carpet Calculator
Estimate carpet quantity, padding, and installation cost
Length of room
Width of room
Per square yard
Room Area
—
sq ft
Carpet Needed
—
sq yd
Padding Needed
—
sq yd
Material Cost
—
USD
With Installation
—
USD
Disclaimer: Results are estimates based on standard formulas. Not a substitute for professional advice from a licensed contractor, engineer, or architect. Verify all calculations before making purchasing or construction decisions.
How to Use This Calculator
Carpet is sold by square yard. Our calculator converts room dimensions and estimates material and installation costs.
- Measure room length and width
- Select carpet quality
- Enter measurements
- Add 10% for pattern matching
Expert Insights
Smart analysis for your Flooring project
Pattern Waste Calculator
Straight lay: 10% waste. Diagonal: 15%. Herringbone: 20%. AI selects the right waste factor for your pattern — not a flat percentage.
Subfloor Readiness Check
80% of flooring failures trace to subfloor issues. AI flags moisture, leveling, and prep requirements based on your material choice.
Material Lifespan Comparison
Hardwood: 100+ years (refinishable). Laminate: 15-25 years. Vinyl plank: 20-30 years. AI calculates cost-per-year for each option.
Calculation Formula
Area = L x W
Sq yards = (Area x 1.1) / 9
Padding = Sq yards
Flooring Material Comparison
| Material | Cost/Sq Ft | Install Cost/Sq Ft | Lifespan | Waste Factor |
|---|---|---|---|---|
| Ceramic Tile | $2-8 | $5-10 | 50+ years | 10-15% |
| Porcelain Tile | $4-12 | $6-12 | 50+ years | 10-15% |
| Hardwood | $5-15 | $4-8 | 100+ years | 7-10% |
| Laminate | $1-4 | $2-5 | 15-25 years | 7-10% |
| Vinyl Plank | $2-7 | $2-5 | 20-30 years | 5-8% |
| Carpet | $2-7 | $1-3 | 5-15 years | 10-12% |
Authority References
Our calculations are based on guidelines and standards from these authoritative sources:
- National Wood Flooring Association (NWFA) — Installation Guidelines. Learn more
- Tile Council of North America (TCNA) — Handbook for Ceramic, Glass, and Stone Tile Installation. Learn more
- ASTM International — ASTM F710 — Preparing Concrete Floors for Resilient Flooring. Learn more
Frequently Asked Questions
How much carpet for 12x14 room?
168 sq ft or about 18.7 sq yd. With 10% waste, order 21 sq yd.
How much does carpet cost installed?
Budget: $2-$4/sq ft. Standard: $4-$7/sq ft. Premium: $7-$12/sq ft installed.