An information providing system includes a server and an onboard device configured to transmit and receive information to and from the server. The onboard device includes an imaging unit configured to capture an image around a vehicle and a first transmission unit configured to transmit position information and captured image data to the server. The server includes a removal state information generating unit configured to generate removal state information including a predicted time which is required to remove the road obstacle based on the captured image data and a second transmission unit configured to transmit the removal state information. The removal state information which is transmitted from the server is output in another onboard device.