1 Horse Power = How Many RPM?

Questions and answers on how to convert things from one unit or system to another

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1 Horse Power = How Many RPM?

Postby Simon Lee » Wed May 30, 2007 9:15 am

Anyone can solve? :twisted:
Simon Lee
Posts: 1
Joined: Wed Mar 07, 2007 11:54 am

Postby Guest » Wed May 30, 2007 5:54 pm

No, because you also have to specify the torque. Power is the product of torque and rotational speed (and possibly a constant, depending on the unit system used).

In the metric system, torque in newton-meters and rotational speed in radians per second gives watta directly.

In US Customary, you have to know that 1 hp = 33000 ft*lb/min, and there are 2*pi radians per revolution.

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