One long day.
The distance from Baltimore, MD to Myrtle Beach, SC is about 487.2 miles (according to the shortest route on Mapquest).
Around 8 hours 35 minutes.
If you mean Myrtle Beach, SC, about 16 hours.
The driving distance from Myrtle Beach, South Carolina to Savannah, Georgia is 227 miles.
The driving distance from Long Beach, North Carolina to Myrtle Beach, South Carolina is 70 miles.
The driving distance from Myrtle Beach, SC, USA to Detroit, MI, USA is 791.76mi / 1274.21km
The driving distance from Lansing, Michigan to Myrtle Beach, South Carolina is about 850 miles.
355 miles
About 550 miles
The driving time is about 2.5 hours.
About 8 and 1/2 hours
It is 8 hours and 26 minutes according to Google Maps.