I am a Nooby, but a numerate one, so have worked out the speedo speed to tacho ratios that work for me.
What follows is metric, but I see you are in Manitoba, so should apply to you (unless you keep your speed in Imperial)
In 1st, the revs are greater than the kph
In 2nd they are about the same (e.g. 4,000 rpm = approx 40 kph)
In 3rd, the speed is 1.5 times the revs (e.g. 4,000 rpm = approx 60 kph)
In 4th, a bit more
In 5th it is 2x (e.g. 4,000 rpm = approx 80 kph)
In 6th a bit more ( and yes, I sometimes try and change into 7th)
I know this won't work for everybody, but it does for me.