The amount of people that a Basketball arena can hold depends on the arena, and typically the top teams historically can hold the most people. Teams such as Syracuse and Duke for example, can hold over 40,000 people, while other arenas are much smaller.
20,300 people
Perth Arena can hold 15,000 people.
Capacity Basketball: 17,000Ice hockey / Arena Football: 12,823facts were taken from the Wikipedia site.edited by Tom.H.G.Maty
The number of seated people that Rod laver arena can hold is 14,820.
10,333
The seating capacity of Wembley Arena is 12,500.
Oracle Arena seats 19,596 fans for basketball and 17,200 for ice hockey.
The Lakers can hold up to 19,000 fans in their arena.
45000
12,000
12,558 approx
Basketball Arena - North Greenwich Arena - Riverbank Arena - Water Polo Arena - Wembley Arena