An elevator includes a hoistway; an elevator car vertically movable in the hoistway; a rope connected to the elevator car movably together with the elevator car; a guide for guiding the rope along a path; and a device for determining position of the elevator car. The device for determining position of the elevator car including an elongated code mark pattern provided on the rope, which elongated code mark pattern comprises code marks distributed along the length of the rope; one or more sensors mounted beside the rope for sensing code marks of the code mark pattern; and an analyzer connected with the at least one sensor. The one or more sensors are arranged to sense code marks of the code mark pattern passing by them when the rope moves along its path, and the analyzer is configured to determine current position of the elevator car based on code marks sensed by the one or more sensors during movement of the rope.