Irregular Polygon Area Calculator

Select the number of vertices and enter each coordinate pair in order.

Number of vertices

Vertex 1 X

Vertex 1 Y

Vertex 2 X

Vertex 2 Y

Vertex 3 X

Vertex 3 Y

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Solve right triangles by finding the hypotenuse or a missing leg with a^2 + b^2 = c^2.

Enter vertices in order around the polygon (clockwise or counterclockwise).

Area is calculated using the shoelace formula: |Σ(xᵢyᵢ₊₁ − xᵢ₊₁yᵢ)| ÷ 2.