Abstract: A pedometer which has a walking sensor for detecting a walking by the vibration of a walker's body, a counter for counting the number of walker's walking steps from the walking sensor, an indicator for indicating the value of the counter, a walking reference signal setter for storing a walking reference signal arbitrarily set in advance by the walker, a walking reference signal generator for generating a walking reference signal set by the walking reference signal setter, and sound producing unit for producing a sound upon reception of the output of the walking reference signal generator. Thus, the pedometer can measure a walking reference signal arbitrarily set in advance by a user or a pitch of user's walking when he actually walks with the pedometer by sounding the result as the walking reference signal to give the standard of the strength of his walking motion to the user, thereby providing the walking motion with high motion efficiency.