Math

Irregular Polygon Area Calculator

Shoelace area of a simple polygon from comma-separated x and y lists.

Area

This free Irregular Polygon Area Calculator covers Shoelace area of a simple polygon from comma-separated x and y lists.

Enter the Irregular Polygon Area Calculator fields, then read the output. Math calculators on this site keep the formula visible beside the form.

Irregular Polygon Area Calculator — how it works

Shoelace area of a simple polygon from comma-separated x and y lists. Typical inputs are x coordinates and y coordinates. How it works beside the form states the identity the Irregular Polygon Area Calculator applies.

FAQ

How do I use the Irregular Polygon Area Calculator?

Open the Irregular Polygon Area Calculator, fill x coordinates and y coordinates, and read the result. Sum x_i y_{i+1} − x_{i+1} y_i around the closed loop, then take half the absolute value.

What formula does the Irregular Polygon Area Calculator use?

The Irregular Polygon Area Calculator uses the identity in How it works. In words: Sum x_i y_{i+1} − x_{i+1} y_i around the closed loop, then take half the absolute value.

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