Geometry
Quadrilateral Area Calculator
Area of a simple quadrilateral from four vertices (shoelace).
Free to use — no sign-up or login.
Area
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This free Quadrilateral Area Calculator covers Area of a simple quadrilateral from four vertices (shoelace).
Close the loop and apply the shoelace formula. Related geometry tools sit beside How it works, with no account required.
Using the Quadrilateral Area Calculator
Area of a simple quadrilateral from four vertices (shoelace). Typical inputs are x₁, y₁, x₂ and y₂. How it works beside the form states the identity the Quadrilateral Area Calculator applies.
FAQ
How do I use the Quadrilateral Area Calculator?
Open the Quadrilateral Area Calculator, fill x₁, y₁, x₂ and y₂, and read the result. Close the loop and apply the shoelace formula.
What formula does the Quadrilateral Area Calculator use?
The Quadrilateral Area Calculator uses the identity in How it works. In words: Close the loop and apply the shoelace formula.