Developer's DescriptionBy raincontinueseasy application tool to convert various speed unit...easy application tool to convert various speed unitcentimeter per second cm/sfoot per second (ft/s)inch per second (inch/s)kilometer per hour (km/h)kilometer per second (km/s)knotmachmeter per second (m/s)mile per hour (mph)mile per secondmillimeter per secondspeed of lightspeed of sound