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Linear Feet to Square Foot Calculator

Instantly Convert Linear Feet to Square Feet — For Flooring, Fencing, Trim & More

Use this linear feet to square foot calculator to convert length and width into total square footage instantly.

Total length in linear feet (0.1–10,000 ft)
Width of material (0.1–100 ft)

Enter dimensions to calculate square feet

Convert board dimensions to square feet using standard lumber sizes.

Common: 8, 10, 12, 16 ft
Actual width after milling
Number of boards

Input board details to calculate

For carpet, vinyl, fabric rolls: Convert linear length to square footage.

Total length of roll
Common roll widths

Enter roll dimensions to see coverage

Linear Feet to Square Foot Calculator: Your Essential Conversion Tool

Welcome to the most accurate linear feet to square foot calculator for contractors, DIYers, and homeowners. Whether you're calculating flooring, fencing, trim, or material rolls, this tool instantly converts linear foot to square foot calculator measurements with precision.

"Mensura recta, opus perfectum." — Latin Proverb on Accurate Measurement

How the Linear Feet to Square Foot Calculator Works

Our linear foot to square feet calculator uses simple geometry: Square Feet = Linear Feet × Width (in feet). We’ve built in smart validation to prevent unrealistic inputs and ensure professional-grade accuracy.

  • Basic Mode: Enter any length and width
  • Board Mode: Pre-loaded lumber dimensions
  • Roll Mode: Standard carpet/vinyl widths

Linear Feet to Square Foot Calculator: Common Use Cases

  • Flooring: Hardwood, laminate, tile
  • Fencing: Privacy, picket, chain-link
  • Trim & Molding: Baseboards, crown
  • Carpet & Vinyl: Roll coverage
  • Paint & Wallpaper: Surface area

Why Use This Linear Foot to Square Foot Calculator?

Built for real-world projects:

  • Input Validation: Prevents errors
  • Three Modes: Basic, Board, Roll
  • Standard Sizes: Lumber & carpet presets
  • Mobile-Friendly: Use on job sites
  • Instant Results: No page reloads

Linear Foot to Square Feet Calculator: Pro Tips

Maximize accuracy:

  • Add 10% for waste/cuts
  • Measure twice, calculate once
  • Use actual lumber dimensions (not nominal)
  • Account for pattern repeat in rolls

Start Using the Linear Feet to Square Foot Calculator Now

Eliminate guesswork from your next project. Our linear foot to square foot calculator delivers instant, accurate results every time.

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