Online Calculators > Math Calculators > Square Foot Calculator

Square Foot Calculator

Square Foot Calculator to calculate the square footage, square yards, square meters and square inches for any construction such as a house or building. The square foot formula below will show you how to calculate square footage.

Square Feet Calculator

Area Shape
Unit of length
Length 2
Outer Diameter
Inner Diameter
Square Footage =
Square Inches =
Square Yards =
Square Meters =
Optional Cost Calculation
Cost Per Unit $
Total Cost

Square Feet Calculator

The Square Feet Calculator will calculate the square footage for any square, rectangle, circle, triangle, trapezoid, annulus shape area. It is useful for any construction projects such as apartment, home, land or garden.

How to Calculate Square Footage

Following is how to calculate square footage for any construction property.

To calculate the square foot for a rectangle room, you need to multiply the length and the width of the area.
Square Footage = Length * Width

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