Endpoint Calculator

Calculate the Unknown Endpoint of a Line Segment

Known Endpoint X:

Known Endpoint Y:

Midpoint X:

Midpoint Y:

Line Segment Visualization

Understanding Endpoint Calculation

Formula:

x₂ = 2xₘ - x₁
y₂ = 2yₘ - y₁

Where:

(x₁, y₁) - Known endpoint coordinates
(xₘ, yₘ) - Midpoint coordinates
(x₂, y₂) - Unknown endpoint coordinates