MPH to RPM converter with G-force

How fast is the car going (MPH) ?:

What is your rim size? (diameter):

Specify rim:

What size is your tire?
(distance from rim edge to outside of tire - tread):

Specify tire:

The RPM for your tires at MPH is:
RPM, or RPS.
Your tire tread is spinning with a G-force of Gs.