A cooling device, which is included in an image forming apparatus, includes multiple air blowers to cool a cooling target provided to the image forming apparatus and a duct to connect with the multiple air blowers and to flow airflow generated by the multiple air blowers therethrough and to have an opening formed thereon and disposed at a position shifted to a part of the multiple air blowers. Respective outputs of the multiple air blowers are different from each other according to respective positions of the multiple air blowers with respect to the opening.