Linear Foot Square Foot Calculator
Convert linear feet to square feet and vice versa. Enter length and width to find area, or enter area and one dimension to find the other.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Linear Foot Square Foot Calculator
This calculator converts between linear feet (length/width) and square feet (area). It works in two modes:
- Mode 1: Length & Width → Area – Enter both Length and Width in linear feet to get the square footage.
- Mode 2: Area & One Dimension → Missing Dimension – Enter the Square Footage plus either Given Length or Given Width to calculate the missing side.
Step-by-step:
- Fill in only one set of inputs:
- Both Length and Width, OR
- Square Footage plus Given Length or Given Width (not both).
- All values must be positive numbers (e.g., 10.5). Use feet (imperial) – no unit conversion needed.
- Click Calculate. The result and formula will appear below.
Example: To find area: Length=10 ft, Width=5 ft → result = 50 sq ft. To find width: Area=50 sq ft, Length=10 ft → result = 5 ft.
Previous Results
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Frequently Asked Questions
A linear foot is a unit of length equal to 12 inches. It measures distance in a straight line.
To convert linear feet to square feet, multiply the length by the width. For example, 10 linear feet by 5 linear feet equals 50 square feet.
Yes, enter the area and either the length or width to calculate the other dimension. For example, if area is 50 sq ft and length is 10 ft, the width is 5 ft.
