The present invention may provide a motor including a shaft, a rotor coupled to the shaft, and a stator disposed to correspond to the rotor, wherein the rotor includes a rotor core and magnets coupled to the rotor core, the magnets include a first unit magnet disposed on an outer circumferential surface of the rotor core in a circumferential direction and a second unit magnet disposed adjacent to the first unit magnet, the first unit magnet includes a first surface facing the rotor core and a first curved surface facing the stator, the second unit magnet includes a second surface facing the rotor core and a second curved surface facing the stator, a length of the first surface in the circumferential direction is different from a length of the second surface in the circumferential direction, and a radius of curvature of the first curved surface is different from a radius of curvature of the second curved surface.