Select a rotor Dynamica rotor from the drop-down menu, and an input field to enter the RCF value you want to convert to RPM.

When you click the Calculate RPM from RCF Value and Rotor Radius button, which calculates the RPM using the formula:

RPM = 1000*sqrt(RCF / (11.18 * radius))

where RCF is the input RCF value, and radius is the radius of the selected rotor.
Radius in cm, RCF in xg

The calculated RPM is then displayed in an output field below the button.