Olympic - size swimming pool - wikipedia Olympic - size swimming pool Olympic sized swimming pool, used for Baku 2015 European Games `` Long Course '' redirects here. It is not to be confused with long course triathlon. An Olympic - size swimming pool conforms to regulated dimensions, large enough for international competition. This type of swimming pool is used in the Olympic Games, where the race course is 50 metres ( 164.0 ft ) in length, typically referred to as `` long course '', distinguishing it from `` short course '' which applies to competitions in pools that are 25 metres ( 82.0 ft ) in length. If touch panels are used in competition, then the distance between touch panels should be either 25 or 50 metres to qualify for FINA recognition. This means that Olympic pools are generally oversized, to accommodate touch panels used in competition. An Olympic - size swimming pool is used as a colloquial unit of volume, to make approximate comparisons to similarly sized objects or volumes. It is not a specific definition, as there is no official limit on the depth of an Olympic pool. The value has an order of magnitude of 1 megaliter ( ML ). Specifications FINA specifications for an Olympic - size pool are as follows : Physical property Specified value Length 7001500000000000000 ♠ 50.000 + 0.030 − 0.000 m Width 7001250000000000000 ♠ 25.0 m Depth 2.0 m ( 6 ft 7 in ) minimum, 3.0 m ( 9 ft 10 in ) recommended. Number of lanes 10 Lane width 2.5 m ( 8 ft 2 in ) Water temperature 25 -- 28 ° C ( 77 -- 82 ° F ) Light intensity minimum 1500 lux ( 140 footcandles ) Volume 2,500,000 L ( 550,000 imp gal ; 660,000 US gal ), assuming a nominal depth of 7000200000000000000 ♠ 2 m. 2,500 m ( 88,000 cu ft ) in cubic units. About 2 acre - feet. There must be two spaces 2.5 m ( 8 ft 2 in ) wide outside lanes 1 and 8 ( in effect, two empty lanes ). The length of 50 metres ( 164 ft ) must be between the touch pads at the end of each lane, if they are used. If starting blocks are used, then there must be a minimum depth of 1.35 metres ( 4.4 ft ) from between 1.0 metre ( 3 ft ) from the end of the pool to at least 6.0 metres ( 20 ft ) from the end of the pool. At all other points, the minimum depth is 1.0 metre ( 3 ft ). If the pool is used for Olympic Games or World Championships, then the minimum depth is increased to 2.0 metres ( 7 ft ). A simplified diagram of the FINA long course swimming pool standard. At FINA 's 2009 Congress, rules were approved for 10 - lane courses for competition, as an alternative to the more traditional 8 - lane course. See also Sport venue List of Olympic - size swimming pools in the United Kingdom List of Olympic - size swimming pools in Ireland List of largest swimming pools List of Olympic venues in swimming References Jump up ^ SI Units : Volume ^ Jump up to : `` Fina Facilities Rules 2015 - 2017 '' ( PDF ). FINA. Retrieved 28 November 2015. Retrieved from `` https://en.wikipedia.org/w/index.php?title=Olympic-size_swimming_pool&oldid=862245911 '' Categories : Swimming at the Summer Olympics Swimming pools Hidden categories : Use dmy dates from July 2014 Talk About Wikipedia Azərbaycanca Català Español Français 한국어 Italiano עברית Lietuvių मराठी Nederlands 日本 語 Português Svenska Türkçe 6 more Edit links This page was last edited on 3 October 2018, at 03 : 19 ( UTC ). About Wikipedia

Question: how many lanes in a olympic swimming pool
Answer: 10