How many miles from Grand Rapids MI to Detroit MI?

625 miles taking this route:

1. Take I-69 SOUTH from Flint to I-94 WEST to Chicago at EXIT 38, FIRST RIGHT.
2. Take I-94 WEST to I-90 WEST via I-294 - (Tri-State) TOLLWAY NORTH and I-290 WEST to bypass Chicago.
3. Take I-90 WEST to U.S. 52 to ROCHESTER at EXIT 216 in Minnesota.
4. Turn right off the exit ramp onto U.S. 52 NORTH to ROCHESTER; take U.S. 52 NORTH to Rochester.