Earlier quoted context omitted.
The non-metric rule of thumb [0] gives 490ft for 65mph; same ballpark. This incorporates reaction and actual braking, not just the latter. [0] https://en.m.wikipedia.org/wiki/Braking_distance
Regardless of what Wikipedia says, if you take almost 1/10 mile to stop at 65 MPH, either you or your car is doing something wrong.
(Source - my Dad investigated hundreds of accidents. He taught me how to drive and we covered this math in detail.)