Carpet Calculator
Calculate carpet materials and costs for your flooring project
Room Dimensions
Costs
Results
Cost Breakdown
Area Breakdown
Carpet Installation Guide
Calculate carpet needs by measuring room dimensions and adding waste factor. Carpet is sold by square yard (9 sq ft = 1 sq yd).
Tips
- Add 10% waste for standard rooms, 15-20% for irregular shapes
- Measure twice - carpet mistakes are expensive
- Quality padding extends carpet life significantly
- Professional installation ensures proper stretching
Frequently Asked Questions
How much carpet do I need?
Measure room length and width in feet, multiply to get square footage. Add 10% for waste and pattern matching. Carpet is sold by square yard (divide sq ft by 9).
How is carpet sold?
Carpet is sold by square yard in 12-15 foot wide rolls. You pay for the full width even if you don't need it all, so room orientation affects cost.
Should I add waste factor?
Yes, add 10% for standard rooms, 15-20% for irregular shapes or patterned carpet. This accounts for cuts, seams, pattern matching, and future repairs.
How much does carpet cost per square foot?
Budget carpet: $1-3/sq ft, Mid-range: $3-6/sq ft, Premium: $6-12/sq ft, Luxury: $12-25/sq ft. Prices include padding and installation.
Do I need carpet padding?
Yes! Padding extends carpet life, improves comfort, provides insulation, and reduces noise. Budget $0.50-2/sq ft for quality padding.
How do I calculate carpet for stairs?
Multiply stair width by depth, then by number of stairs. Add 4 inches to width for wrapping. Each standard stair is roughly 3 sq ft. Add 10% waste.
What about closets and hallways?
Include closet floors in your calculation. For hallways, measure length × width. Hallways often require more waste due to seaming and narrow widths.
Can I install carpet myself?
DIY is possible for small rooms but requires special tools (knee kicker, power stretcher, seam iron). Professional installation ensures proper stretching and longevity.
How do I measure irregular rooms?
Break room into rectangles, calculate each section separately, then add them together. For curves or angles, use the largest rectangle that fits.
What's the difference between carpet and carpet tiles?
Carpet tiles are squares (18-24 inches) that click together. They're easier to install, replace damaged sections, and typically cost $2-8 per sq ft installed.
What Our Users Say
Karen Williams
Homeowner
This calculator saved me from over-ordering! Got exactly the right amount of carpet with perfect waste allowance.
Mike Chen
Contractor
Use this for every carpet estimate. The square yard conversion and cost breakdown make client quotes professional and accurate.
Linda Garcia
Interior Designer
Perfect for planning client budgets. Love how it shows cost per square foot so clients understand pricing.
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