The official length of an Olympic swimming pool is 50 meters. This standard size is used for international competitions and facilitates accurate timing and results across events. Olympic swimming pools are also marked with lanes, typically eight lanes wide, each 2.5 meters apart. The depth of a pool is generally at least 2 meters, providing adequate conditions for athletes to perform their best. The 50-meter standard is vital for fairness in competition and reflects the highest level of the sport.