To measure the number of steps of a user in a more precise manner, the pedometer of the present invention comprises a state variable detection unit for detecting a state variable indicating a walking movement of a user, a walking step determination unit for determining each walking step of the user from an output of the state variable detection unit, a walking information storage unit for incrementing a step count each time a walking step is determined by the walking step determination unit and storing the incremented step count and the associated time information obtained by a clock, and a walking step count computation unit for computing a walking step count of the user from a time point of initiating the measurement operation to a time point of terminating the measurement operation to a decimal part according to the step count and the associated time information stored in the walking information storage unit.
