Aww, nuts. And I was gonna run inside and get the book (Auto Math, exellent book! ) to get the formula for ya!
BTW, I figured mine once after a run to see how it did wound up a bit, ran about 3300 rpm, speedo said 80-ish. Ran the #s, came out that I was actually doing 109!!!!
Needless to say, I haven't done that again!
