By the Linear Feet Calculator Team | Reviewed by construction and logistics professionals | Updated June 2026

Linear Feet Calculator

Q: How do I calculate linear feet?

Linear Feet = Total Inches / 12. If your measurement is already in feet, you have your linear feet. For area conversions: Linear Feet = Square Feet / Width in feet. Use the calculator above for instant results.

Free online linear feet calculator for construction, home improvement, and shipping. Convert linear feet to square feet, calculate price per linear foot, estimate fence costs, and measure for flooring, decking, cabinets, gutters, and more.

All calculators work instantly in your browser — no sign-up, no download. Used by contractors, DIY homeowners, and freight shippers.

Free forever No sign-up Instant results

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Quick Linear Feet Calculator

Enter length, width, and quantity to calculate total linear feet (LF) and square feet (SF).

Length (feet)

Width (feet)

Quantity

Core Conversion Calculators

Most used tools

📏 Linear Feet to Square Feet 📐 Square Feet to Linear Feet 💰 Price Per Linear Foot 🪵 Board Feet to Linear Feet 📏 Inches to Linear Feet

Linear Feet by Project Type

14 scene calculators

🏠 Linear Feet for Fence 🏗️ Linear Feet for Deck 🟫 Linear Feet for Flooring 📐 Linear Feet for Baseboard 🗄️ Linear Feet for Cabinets 🔲 Linear Feet for Countertops 🏠 Linear Feet for Roofing 🧶 Linear Feet for Carpet 🧱 Linear Feet for Drywall 🔧 Linear Feet for Pipe 🪨 Linear Feet for Concrete 💧 Linear Feet for Gutters 🚚 Linear Feet for Freight 🏠 Linear Feet for Siding

Cost Estimators & Unit Converters

18 tools

💲 Fence Cost Per Linear Foot 🧮 Chain Link Fence Cost 🧮 Wood Fence Cost 🧮 Wood Privacy Fence Cost 🏗️ Deck Railing Cost 🧮 Trex Decking Cost 🧮 Composite Decking Cost 📏 Linear Feet to Linear Yards 📐 Linear Feet to Square Yards 📏 Linear Feet to Meters 🌍 Acres to Linear Feet 📦 Cubic Feet to Linear Feet ⭕ Circle to Linear Feet ⚖️ Pounds Per Linear Foot 🏊 Pond Liner Calculator 📚 Archival Linear Feet 🧮 Rebar Weight Per Linear Foot 🧮 Gallons Per Linear Foot

Guides & Educational Resources

3 guides

📖 How to Calculate Linear Feet 📖 What Is a Linear Foot 📖 Linear Feet vs Square Feet

Why Use Our Linear Foot Calculators

Built by Professionals

Our calculators are reviewed by construction estimators and logistics professionals. We incorporate real-world waste factors, standard material dimensions, and current market pricing.

Covers Every Use Case

From fencing and decking to freight shipping and archival storage — 39 specialized calculators for every linear foot measurement need.

Free & Instant

No sign-up, no download, no fees. All calculations happen in your browser and return results instantly as you type. Use on desktop, tablet, or phone.

Frequently Updated

Material costs updated for 2026. Waste factors verified against contractor best practices. We continuously add new calculators based on user requests.

What Is a Linear Foot?

A linear foot (LF or ln ft) is simply 12 inches of length measured in a straight line. Unlike square feet — which measures area — linear feet only cares about distance. If you have a 10-foot board, it's 10 linear feet regardless of whether it's 4 inches wide or 12 inches wide. This is the key concept: linear feet ignores width entirely.

Contractors use linear feet for materials sold by length: fencing, trim, baseboard, gutters, pipe, wire, and countertops. Lumber yards use board feet (volume), while flooring stores use square feet (area). Knowing when to use which measurement saves you from ordering the wrong quantity — a mistake that costs time, money, and extra trips to the supply house.

What Is a Linear Foot? Linear Feet vs Square Feet How to Calculate

Which Calculator Should You Use?

If You Need To...	Use This Calculator
Convert linear feet to square feet	LF to Square Feet →
Find out how many linear feet from square footage	Square Feet to Linear Feet →
Estimate the cost of fencing or decking	Fence Cost Per Linear Foot → or Deck Railing Cost →
Calculate material for a specific project	Fence →, Deck →, Flooring →, Cabinets →
Convert board feet to linear feet for lumber	Board Feet to Linear Feet →
Find the price per linear foot of any material	Price Per Linear Foot →
Calculate freight shipping linear feet	Linear Feet for Freight →
Size a pond liner	Pond Liner Calculator →

Frequently Asked Questions

How do I calculate linear feet?

Linear Feet = Total Inches ÷ 12. If your measurement is already in feet, you have your linear feet. For area conversions: Linear Feet = Square Feet ÷ Width in feet. Use the calculator above for instant results.

What's the difference between linear feet and square feet?

Linear feet measures length in one dimension. Square feet measures area (length × width). A 10-foot board is always 10 LF, but its square footage changes with width. For materials sold by length (fencing, trim, pipe), use linear feet. For materials covering an area (flooring, drywall, paint), use square feet.

How much does a wood fence cost per linear foot?

Wood fence costs $12-30 per linear foot installed (2026 prices). Pressure-treated pine is most affordable at $12-18/LF. Cedar runs $14-32/LF. Wood privacy fence costs $15-35/LF. Prices include materials, labor, and posts. See our Fence Cost Calculator for a detailed estimate by material type.

Is this calculator really free?

Yes — all 39 calculators are completely free with no sign-up required. Calculations run in your browser with instant results. We don't store your measurements or require any personal information. We support the site through advertising.