Question 1

What formula does this calculator use?

Accepted Answer

It uses RCF = 1.118 × 10⁻⁵ × r × N², where r is the rotor radius in centimeters and N is the speed in RPM.

Question 2

Can I calculate RPM or rotor radius?

Accepted Answer

Yes. Leave RPM or rotor radius blank and enter the other two values.

Question 3

Are my values uploaded?

Accepted Answer

No. The calculation is performed in your browser.