Question: how many gallons of water does it take to fill an olympic swimming pool?
Answer: An Olympic pool is 25 meters x 50 meters x 2 meters deep. That's about 82 feet x 164 feet x 6 feet, which is 80,688 cubic feet. One cubic foot of water = 7.5 gallons. So an Olympic pool has about 80,688 cubic feet x 7.5 gallons per cubic foot = 605,160 gallons of water.