BRAKE PEDAL DEVICE

A brake pedal device includes a support portion, a shaft member, a pedal base, and a pedal operating portion. An axis of the shaft member is positioned on an opposite side of a center line in a thickness direction of the pedal base from a surface of the pedal base facing the driver. A heel of the shoe is placed against a position on the floor or the like that is a predetermined distance on the rear side of the vehicle from the axis, and the driver can press down on the pedal operating portion with both the ball and the pad of the big toe in contact with an insole of the shoe. A positional relationship between the shaft member and the pedal operating portion is defined so that an angle at which a driver's MTP joint bends in an extension side increases as a pedal stroke increases.