18 hours
12 hours
11
If that's the Vincennes in Indiana (which you might have mentioned), it's between 12 and 13 hours to Myrtle Beach.
About 8 hours of driving time.
12 and half hours
5 hours
about 14 hours
3 and 1/2 to 4 hours
15.5 hrs
about 8 hrs.
It'll take about 14-15 hours nonstop to cover the 900 miles from St Louis, MO to Myrtle Beach, SC.
There is approximately 651 miles between Myrtle Beach, South Carolina and Louisville, Kentucky. The drive would take about 11 hours to complete.