I had to figure out this very question for a client to get credit on his DWP bill, and no one could answer it, so I took to the internet and found this site:
http://www.poolinfo.com/Pool-Volume.htm
It's FABULOUS and gives you exactly what you're looking for.
Meters.
75 liters
The anwser to this QuestionWe would use a termometre to measure , the temperature of a swimming pool .A thermometer.
the fish tank
You would use meters.
Liters or cubic meters are typically used to measure the volume of water in a swimming pool.
The anwser to this QuestionWe would use a termometre to measure , the temperature of a swimming pool .A thermometer.
Not normally because meters would be more appropriate
You would use cubic meters or cubic feet to measure the volume of a swimming pool. This unit accounts for the three-dimensional space that the pool occupies.
in meters
fish tank
You can measure a swimming pool b cubic meters or gallons.