That is a fairly short drive depending on where in Milwaukee you live. Worst case is about an hour.
A long time.
If you were to drive from Austin to Milwaukee it would take about 19 hours and 2 minutes. That is assuming that you are drving to Milwaukee.
Check Mapquest.com
12 hrs
Shams Rule
4 hours
2536 kilometers
It will take about 4 to 4 1/2 hours to drive from Detroit to Traverse City.
I assume you mean Milwaukee, Wisconsin (as opposed to Milwaukee, North Carolina). The distance to New Orleans from Milwaukee is 912 miles. How long that distance would take you to drive depends on how fast your average speed is. Driving an average of 50 MPH, it would take you 18.24 hours.
a long time
20 hours