In Europe, the answer is unequivocally 50 meters. However, in the United States the term "Olympic size pool" usually refers to a pool that is half that size, or 25 meters.
easy question. no need to be stupid, it is 50 meters. du!
hope this is what you needed
An olympic swimming pool is 2m deep, 50m long and 25m wide.
In the London 2012 Olympic Games the pool is 50 m length.
A semi-olympic pool is 25 meters long by 12.5 meters wide with a depth of between 1.2 and 1.6 meters.
The pool is standard Olympic size: 50 meters The pool is standard Olympic size: 50 meters
50 meters .
I am assuming by professional, you mean Olympic size. An Olympic size pool is 50 meters. The most common lap pool is 25 yards.
Olympic Sized/Long Course -- 50m Shortcourse -- 25m
It is 100 yards long An Olympic sized swimming pool is 50 meters long by 25 meters wide (164 feet x 82 feet).
It is 3 metres deep and 50m long