A fuel pump includes a cylindrical stator having a plurality of windings, a rotor rotatably disposed radially inward of the stator, a shaft integrally rotatable with the rotor, an impeller including a fitting hole to which an end portion of the shaft is fitted, and a balance weight disposed in the impeller. The balance weight is formed so as to be symmetrical about a point of symmetry lying on an axial center of the impeller.