What heights does Class C airspace typically top out at?

Class C airspace typically extends from the surface up to an altitude of 4,000 feet above ground level (AGL). This airspace designation is designed to cover airspace around airports with a significant amount of traffic, ensuring a safe environment for both instrument and visual flight rules operations.

The floors and ceilings of Class C airspace can vary, but the upper limit is generally set at 4,000 feet AGL to allow for a buffer above the dense traffic immediately around busy airports. This altitude range is specifically structured to maintain safe separation between aircraft flying into and out of these airports and those operating in surrounding uncontrolled airspace.

The other options reflect altitudes that fall outside the typical parameters for Class C airspace. For example, 2,500 feet AGL may pertain to some Class D airspace but does not represent the upper limits for Class C. Heights like 10,000 feet MSL and 14,500 feet MSL pertain more to Class B airspace or higher altitude airspace classifications, which are designed to manage air traffic further from airports or above congested airspace.