Convert RPM to km/hr This topic contains 4 replies, has 5 voices, and was last updated by King 2 years, 4 months ago. Author Posts March 19, 2013 at 9:15 am #1469 Guru PrasanthModerator Points: 62 How to convert RPM to km/hr? March 19, 2013 at 3:46 pm #1470 Surjeet SankararajKeymaster Points: 629 RPM can be easily converted to km/hr. First you need to know the radius of the rotating object. Let r be the radius of the rotating object and v be its linear velocity in km/hr Then, linear velocity is given by v = 2πr × RPM × (60/1000) km/hr August 9, 2013 at 12:46 pm #3011 adityaParticipant Points: 15 http://www.endmemo.com/physics/rpmlinear.php Please go through the link you will find your answer October 23, 2014 at 8:21 pm #3297 masayParticipant Points: 15 Excuse me, what The value of RPM from machine or from the wheels of motorcycle?? Help me please November 28, 2014 at 2:50 pm #3313 KingParticipant Points: 96 In a motorcycle, RPM refers to Engine RPM Author Posts Tagged: UNIT CONVERSION You must be logged in to reply to this topic.