The 1500 is 30 laps or 30 lengths. The 1650 consists of 66 lengths or 33 laps. The men's 1500m world record is around fourteen and a half minutes. For the Pool Training Mile: To prepare for the mile race, swimmers utilize either 1650 meters or 1650 yards, both of which will offer subsequent fitness for the real competition mile, which is classified as either 1500 meters or 1650 yards as we just described.