You have to specify which Mount Pleasant you are asking about, as there are at least 4 of them.
It is 155.19 miles from Mount Pleasant to Detroit.
The distance between Mount Pleasant SC, USA and Seoul, South Korea, is 7,276 miles (11,709 km)
490 miles
107 Miles
It is 702 miles according to Google Maps.
It is 155 miles according to Google Maps.
It is 130 miles according to Google Maps.
117 miles taking I-30 EAST.
188 miles
It is 43.50 miles from Detroit to Ann Arbor.
Mount Pleasant Iowa is 516 miles from Nashville and 619 miles from Oklahoma City.
86 miles