There are 30 teams in the NBA and 29 arenas (the LA Lakers and the LA Clippers share an arena). In this post, we'll take a look at every one of them ranked by their seating capacity from largest to smallest. We'll also take a look at the total cost of each arena (including the cost of major renovations) and the cost of every arena per seat. Both figures are based on 2018 prices.

Before you scroll down to find out the rankings, here are some interesting facts about NBA arenas:

• The difference in seating capacity between the largest arena (United Center: 20,197) and the smallest arena (Smoothie King Center: 16,867) is exactly 3,330 seats, a difference of about 19.74%.
• The average stadium capacity is 18,966.
• Barclays Center has the distinction of being the only one arena whose original construction cost is over $1 billion.
• But if you count renovation cost in addition to original construction cost, Madison Square Garden has also racked up a total cost of over $1 billion.
• The mantle for the most expensive arena cost per seat belongs to Madison Square Garden ($63,828 per seat) in NYC. The cheapest arena cost per seat goes to Chesapeake Energy Arena ($6,755 per seat) in Oklahoma City. The difference between them is nearly 10-fold!
• Staples Center is the only NBA arena to have more than one team (the Lakers and Clippers).
• Madison Square Garden (NY Knicks) is currently the only arena not named after a corporate sponsor.
• The oldest arena still in use is Oakland's Oracle Arena, which opened in 1966. The newest arena will be the Milwaukee's Wisconsin Entertainment and Sports Center, which opens in 2018. So the difference in age between the oldest and newest arena is 52 years.

Now that you've learned a few interesting tidbits about NBA arenas, without further ado, here are the rankings for the seating capacity of NBA arenas, from largest to smallest: