To provide a walking distance meter that indicates a walking distance accurately with non such problem as requiring labor to measure and input a stride or occurrence of error caused by stride.

An acceleration sensor 3 in a main body part 1 attached to the one ankle measures an acceleration, the product of a digital value of the acceleration AD-converted by an AND converter 5 and measurement time of a clock 2 is integrated in digital manner with a CPU6 to obtain a walking speed and a walk-around distance, which is displayed on a digital display 8 attached to a wrist. At the CPU6, acceleration non-sensitive band wherein such part as a digitized value of an acceleration while a foot is landing on a ground is smaller than a specified value is recognized as acceleration zero is set, and by resetting a product value of the digitized value of the acceleration and the measurement time of the clock 2 to zero during the acceleration non-sensitive band, an error due to off set of speed data of the acceleration sensor 3 is can celled.