Carpet Calculator - Free Online Carpet Area & Cost Calculator

Calculate carpet area, cost, and installation requirements instantly. Get accurate measurements for your flooring project with our professional carpet calculator tool.

Calculation Steps

  1. Measure Room Dimensions: Accurately measure the length and width of your room
  2. Calculate Base Area: Multiply length × width to get the base square footage
  3. Add Waste Factor: Add 5-20% extra for cuts, pattern matching, and mistakes
  4. Calculate Total Area: Base area + (Base area × Waste factor)
  5. Determine Cost: Total area × Cost per square unit
  6. Add Installation: Include professional installation and underlayment costs

About This Calculator

Our Carpet Calculator is a comprehensive tool designed to help homeowners, contractors, and interior designers accurately estimate carpet requirements and costs for any room or space. The calculator takes into account various factors including room dimensions, waste factors, and additional costs to provide precise calculations.

This tool supports multiple measurement units and currencies, making it suitable for users worldwide. Whether you're planning a simple bedroom carpet installation or a complex commercial flooring project, our calculator provides the accuracy and flexibility you need.

How to Use

  1. Enter Room Dimensions: Input the length and width of your room in your preferred unit
  2. Select Measurement Unit: Choose between feet, meters, yards, or inches
  3. Add Carpet Cost: Enter the cost per square unit of your chosen carpet
  4. Choose Currency: Select your preferred currency for cost calculations
  5. Set Waste Factor: Choose appropriate waste percentage based on your project complexity
  6. Optional Costs: Add installation and underlayment costs if applicable
  7. Calculate: Click the calculate button to get instant results

Formula Used

Basic Area Calculation:
Area = Length × Width

Total Area with Waste:
Total Area = Area × (1 + Waste Factor / 100)

Total Cost Calculation:
Total Cost = (Total Area × Carpet Cost) + Installation Cost + Underlayment Cost

Use Cases / Applications

  • Home Renovation: Calculate carpet requirements for bedrooms, living rooms, and hallways
  • Commercial Projects: Estimate flooring needs for offices, hotels, and retail spaces
  • Interior Design: Plan carpet installations for multiple rooms and spaces
  • Cost Estimation: Budget accurately for carpet purchase and installation
  • Contractor Planning: Prepare material lists and project quotes
  • DIY Projects: Plan carpet installation for home improvement projects

Calculation Examples

Example 1: Standard Bedroom
Room: 12 ft × 10 ft = 120 sq ft
Waste Factor: 10%
Total Area: 120 × 1.10 = 132 sq ft
Carpet Cost: $3.50 per sq ft
Total Cost: 132 × $3.50 = $462
Example 2: Living Room with Installation
Room: 20 ft × 15 ft = 300 sq ft
Waste Factor: 15%
Total Area: 300 × 1.15 = 345 sq ft
Carpet Cost: $4.25 per sq ft
Installation Cost: $2.00 per sq ft
Total Cost: (345 × $4.25) + (345 × $2.00) = $2,156.25

Frequently Asked Questions

What waste factor should I use?
For standard rectangular rooms, use 5-10%. For rooms with angles, alcoves, or pattern matching, use 15-20%.
How do I measure irregularly shaped rooms?
Break the room into rectangular sections, calculate each area separately, then add them together.
Should I include closets in my calculation?
Yes, include closet areas in your total room measurement for accurate carpet requirements.
What's included in installation cost?
Installation typically includes labor, tack strips, padding (if not calculated separately), and basic carpet laying.
How accurate are the calculations?
Our calculations are highly accurate for standard installations. Always verify with your contractor for complex projects.