| Gary to Marysville (California) | 1,798.20 mi (2,893.92 km) |
| Gary to Marysville (Ohio) | 228.49 mi (367.73 km) |
| Gary to Marysville (Washington) | 1,747.14 mi (2,811.75 km) |
| Gary to Maryville (Missouri) | 401.70 mi (646.47 km) |
| Gary to Maryville (Tennessee) | 442.67 mi (712.40 km) |
| Gary to Mason (Ohio) | 222.29 mi (357.74 km) |
| Gary to Mason City (Iowa) | 317.47 mi (510.92 km) |
| Gary to Massapequa (New York) | 724.21 mi (1,165.50 km) |
| Gary to Massapequa Park (New York) | 725.13 mi (1,166.99 km) |
| Gary to Massillon (Ohio) | 307.75 mi (495.27 km) |
| Gary to Mastic (New York) | 754.81 mi (1,214.75 km) |
| Gary to Mastic Beach (New York) | 755.85 mi (1,216.42 km) |
| Gary to Matteson (Illinois) | 21.40 mi (34.44 km) |
| Gary to Matthews (North Carolina) | 573.39 mi (922.78 km) |
| Gary to Mattoon (Illinois) | 155.42 mi (250.13 km) |
