| Gary to Monticello (Minnesota) | 412.60 mi (664.01 km) |
| Gary to Montrose (Colorado) | 1,103.63 mi (1,776.12 km) |
| Gary to Moody (Alabama) | 554.14 mi (891.80 km) |
| Gary to Moore (Oklahoma) | 697.32 mi (1,122.23 km) |
| Gary to Moorestown-Lenola (New Jersey) | 656.94 mi (1,057.24 km) |
| Gary to Mooresville (North Carolina) | 543.90 mi (875.33 km) |
| Gary to Moorhead (Minnesota) | 590.45 mi (950.24 km) |
| Gary to Moorpark (California) | 1,779.52 mi (2,863.86 km) |
| Gary to Moraga (California) | 1,853.53 mi (2,982.97 km) |
| Gary to Moreno Valley (California) | 1,704.88 mi (2,743.74 km) |
| Gary to Morgan City (Louisiana) | 848.91 mi (1,366.19 km) |
| Gary to Morgan Hill (California) | 1,845.29 mi (2,969.70 km) |
| Gary to Morganton (North Carolina) | 505.87 mi (814.12 km) |
| Gary to Morgantown (West Virginia) | 410.77 mi (661.08 km) |
| Gary to Morris (Illinois) | 58.01 mi (93.35 km) |
