To measure your stride, walk through a puddle of water, and then walk normally for about 10 steps on dry pavement. Using a measuring tape, measure the distance between two left heel prints or two right heel prints. Measure several prints, and take the average distance as the stride length.
A stride length is the distance covered by two steps, or the distance between where the left heel touches down and then touches down again. Some users confuse stride length with step length. To measure a step length, use the wet puddle method, but measure from the heel of the left footprint to the heel of the right footprint.