An Olympic-sized swimming pool is 50 meters (164 feet) long

Explanation

Olympic-sized swimming pools are officially 50 meters (164 feet) long and 25 meters (82 feet) wide, with a minimum depth of 2 meters (6.6 feet) and a recommended depth of 3 meters (9.8 feet). At minimum depth, such a pool holds about 2.5 million liters (660,000 gallons) of water.