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Square Calculator Online

Square Side length Diagonal length Area Perimeter Calculator
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Welcome to use Square side length diagonal length area perimeter calculator online. A calculator of the side length, diagonal length, area and perimeter of a Square. Given any one variable of a Square you can calculate the other 3 unknowns.

Units
Significant Figures

Side length Feet a = √A = P/4 = q / √2

Diagonal length Feet q = √(2a2) = a√2

Perimeter Feet P = 4a

Area Square Feet A = a2

a = Side length
q = Diagonal length
P = Perimeter
A = Area
√ = Square root

* Units: Note that units of length are shown for convenience. They do not affect the calculations. Any other base unit can be substituted.

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