The Distances Around Each Lane
Since the distance around the track in lane one, the inside lane, is 400 meters the distance around the track for the other lanes can be calculated by knowing the lane width and a few other measurements. The formula, L = 2S + 2pi(R + (n-1)w) can be used to calculate the distances around the track for the various lanes. In this formula L equals the lane distance, S equals the length of the straightaway, R is the radius of the turn, n is the lane number and w is the width of the lane.
Since the IAAF has standardized track lane widths at 1.22 meters the above formula calculates the distance around the track in lane 2 as 407.67 meters, lane 3 as 415.33 meters, lane 4 as 423 meters, lane 5 as 430.66 meters, lane 6 as 433.38 meters, lane 7 as 446 meters and lane 8 as 453.66 meters.
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