Center of Mass Calculator Center of Mass Calculator 2D Calculator 3D Calculator Enter the coordinates and masses to calculate the center of mass in 2D X1 Coordinate Y1 Coordinate Mass 1 X2 Coordinate Y2 Coordinate Mass 2 Center of Mass (2D) X1 Coordinate Y1 Coordinate Z1 Coordinate Mass 1 X2 Coordinate Y2 Coordinate Z2 Coordinate Mass 2 Center of Mass (3D) Calculate Reset