Enter your Linear Feet and Width (in feet or inches) to calculate the Total Area in Square Feet — or flip it around using the Calculation Type to convert Square Feet back into Linear Feet, with Total Length and Total Width shown as bonus outputs.
Total Area
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Total Length
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Total Width
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Linear feet measures length in a single dimension (like the edge of a board), while square feet measures area in two dimensions (length × width). To convert between them, you need to know the width of the material.
There is no fixed conversion since it depends on the width of the material. For example, 1 linear foot of 6-inch wide flooring equals 0.5 square feet (1 ft × 0.5 ft), while 1 linear foot of 12-inch wide material equals 1 square foot.
To calculate linear feet for flooring, divide the total square footage by the width of the flooring planks. For example, 100 sq ft ÷ 0.5 ft (6-inch width) = 200 linear feet of flooring needed.
You need linear feet calculations when purchasing flooring sold by the linear foot, estimating trim or molding, calculating fence materials, or determining siding coverage. Many building materials are priced per linear foot rather than square foot.
No, linear feet and board feet are different. Linear feet measures length only, while board feet measures volume (length × width × thickness in feet). Board feet is commonly used for lumber pricing.
The formula is: Square Feet = Linear Feet × Width (in feet). Remember to convert inches to feet by dividing by 12. For example, 6 inches = 0.5 feet.
Yes, this calculator works for any material where you need to convert between linear measurements and area coverage, including flooring, siding, lumber, fencing, trim, and molding.