| Michigan City to Maryland Heights (Missouri) | 280.81 mi (451.92 km) |
| Michigan City to Marysville (California) | 1,821.88 mi (2,932.03 km) |
| Michigan City to Marysville (Ohio) | 209.73 mi (337.53 km) |
| Michigan City to Marysville (Washington) | 1,765.53 mi (2,841.35 km) |
| Michigan City to Maryville (Missouri) | 427.44 mi (687.90 km) |
| Michigan City to Maryville (Tennessee) | 440.36 mi (708.69 km) |
| Michigan City to Mason (Ohio) | 211.11 mi (339.75 km) |
| Michigan City to Mason City (Iowa) | 337.73 mi (543.52 km) |
| Michigan City to Massapequa (New York) | 699.65 mi (1,125.98 km) |
| Michigan City to Massapequa Park (New York) | 700.56 mi (1,127.45 km) |
| Michigan City to Massillon (Ohio) | 284.82 mi (458.37 km) |
| Michigan City to Mastic (New York) | 730.08 mi (1,174.96 km) |
| Michigan City to Mastic Beach (New York) | 731.15 mi (1,176.67 km) |
| Michigan City to Matteson (Illinois) | 47.40 mi (76.28 km) |
| Michigan City to Matthews (North Carolina) | 563.99 mi (907.65 km) |
