A memory controller and a method of operating the same. The memory controller which increases the number of read commands to be performed during a suspend period may include a command generator configured to receive a request from a host and generate a command corresponding to the request, a command queue configured to store the generated command, a command controller configured to control the command queue so that the command stored in the command queue is output to the memory device, and a suspension controller configured to, when a read request is input from the host while the memory device is performing an operation, determine a delay amount of time based on a number of read commands stored in the command queue and provide a suspend command that instructs suspension of performance of the operation to the memory device after the delay amount of time has elapsed.