| Mack to Romeoville (Illinois) | 248.60 mi (400.08 km) |
| Mack to Romulus (Michigan) | 223.29 mi (359.34 km) |
| Mack to Ronkonkoma (New York) | 621.89 mi (1,000.84 km) |
| Mack to Roosevelt (New York) | 597.02 mi (960.81 km) |
| Mack to Rosamond (California) | 1,863.07 mi (2,998.32 km) |
| Mack to Rosaryville (Maryland) | 422.60 mi (680.11 km) |
| Mack to Roscoe (Illinois) | 320.12 mi (515.18 km) |
| Mack to Rose Hill (Virginia) | 407.36 mi (655.58 km) |
| Mack to Roseburg (Oregon) | 2,012.32 mi (3,238.52 km) |
| Mack to Rosedale (California) | 1,904.53 mi (3,065.04 km) |
| Mack to Rosedale (Maryland) | 437.29 mi (703.75 km) |
| Mack to Roselle (Illinois) | 265.01 mi (426.49 km) |
| Mack to Roselle (New Jersey) | 561.62 mi (903.83 km) |
| Mack to Roselle Park (New Jersey) | 561.38 mi (903.45 km) |
| Mack to Rosemead (California) | 1,874.63 mi (3,016.92 km) |
