Area of Triangle Calculator

Calculate the area of a triangle given the coordinates of vertices (x₁, y₁), (x₂, y₂), and (x₃, y₃).

Vertex A

Vertex B

Vertex C

Result

Formula

Area = ½ |x₁(y₂ - y₃) + x₂(y₃ - y₁) + x₃(y₁ - y₂)|