Linear Feet Calculator

Category: Various Measurements/Units
- August 28, 2025
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Calculate linear feet from measurements in various units. This calculator is useful for construction, flooring, fencing, molding, and other projects that require linear foot calculations.

Measurement Input

pieces
Width of flooring, fabric, etc.

Understanding Linear Feet

A linear foot (also called a lineal foot) is a measurement of length equal to 12 inches (1 foot). Unlike square footage, which measures area, linear footage is a one-dimensional measurement.

Common Applications
  • Lumber and Trim: Boards, molding, and other building materials
  • Flooring: Calculating material needed for baseboards
  • Fencing: Determining how much fencing material is needed
  • Fabric and Textiles: Measuring material for curtains or upholstery
  • Piping and Conduit: Measuring total length needed
Conversion Factors
  • 1 linear foot = 12 inches
  • 1 linear foot = 0.33333 yards
  • 1 linear foot = 30.48 centimeters
  • 1 linear foot = 0.3048 meters

Disclaimer: This calculator provides estimates for planning purposes only. Actual material needs may vary based on specific project requirements, installation methods, and other factors. Always consult with a professional for precise measurements for your particular project.

What Is a Linear Feet Calculator?

The Linear Feet Calculator is a practical tool designed to help you determine the total length of materials in linear feet, regardless of the unit your measurements start in. Whether you're working on a home renovation or planning a construction project, this calculator simplifies how you convert and calculate lengths for things like flooring, trim, fencing, or piping.

Formula Used

Basic Linear Feet Formula:
Linear Feet = (Length in selected unit × Quantity) converted to feet

Area to Linear Feet Formula:
Linear Feet = Area in sq ft ÷ Material Width in feet

With Waste Added:
Total with Waste = Linear Feet × (1 + Waste Percentage ÷ 100)

Why Use This Calculator?

This calculator is ideal for estimating the amount of material you need without doing manual conversions or calculations. It acts as a:

  • conversion tool for various measurement units
  • measurement converter that simplifies calculations across units like inches, yards, metres, and centimetres
  • Planning assistant to ensure you order enough material, including an optional waste margin
  • Construction estimator for skirting boards, timber, pipe runs, and more

How to Use the Calculator

There are three main ways to input your measurements:

  • Simple Calculation: Enter a single length, select the unit, and quantity. Great for basic jobs like a few boards or beams.
  • Multiple Measurements: Add several different length and quantity pairs. Perfect for projects with varied sizes.
  • Area to Linear Feet: If you know the area (e.g., square feet) and the material width (e.g., fabric or flooring), this will calculate the required length.

Advanced Options

If you're concerned about cutting waste or planning for overage, you can:

  • Include a waste percentage (e.g., 10%)
  • Select the number of decimal places for more precise values

Understanding the Results

Once you hit "Calculate Linear Feet," the tool will display:

  • Total Linear Feet — the combined result of your measurements
  • With Waste Added — includes your selected waste margin
  • Unit conversions — see the length in inches, yards, and metres
  • Breakdown — a summary of each measurement’s contribution

Helpful for Many Projects

This calculator supports people working in:

  • Flooring – skirting boards, hardwood strips
  • Construction – framing, woodwork
  • Fencing – posts and panels
  • Textiles – fabric lengths
  • Piping – plumbing and electrical conduit runs

Frequently Asked Questions (FAQ)

What is a linear foot?
A linear foot is a straight-line measurement equal to 12 inches. It's used for measuring length, not area or volume.

Is this the same as square feet?
No. Linear feet measure length. Square feet measure area. This calculator helps you work with linear footage only.

Can I use metric units?
Yes. You can enter values in metres and centimetres. The calculator acts as a unit conversion tool and handles quick unit conversions automatically.

Why would I add waste?
To account for material that may be lost due to cutting errors, trimming, or miscalculations. It's a smart planning step.

What if I have different measurement types?
Use the Multiple Measurements tab to enter various lengths and quantities with a shared unit.

Conclusion

The Linear Feet Calculator is a convenient conversion helper and estimating tool for anyone working with physical materials. Whether you're doing renovations, installations, or construction, it provides fast and accurate results while saving time and effort. Thanks to built-in unit conversion and flexible inputs, this measurement converter takes the guesswork out of your planning.