Midpoint Calculator

The midpoint formula averages the coordinates of two points, so the midpoint of A and B is ((x1 + x2) / 2, (y1 + y2) / 2). Enter two points and it returns the midpoint, the distance between them and the working for each coordinate. A second mode reverses the formula: give one endpoint and the midpoint and it returns the other endpoint. A third takes points in three dimensions. Coordinates may be negative or decimal, and results are rounded to six places.