| Callaway to Romeoville (Illinois) | 806.90 mi (1,298.59 km) |
| Callaway to Romulus (Michigan) | 844.06 mi (1,358.38 km) |
| Callaway to Ronkonkoma (New York) | 1,014.18 mi (1,632.17 km) |
| Callaway to Roosevelt (New York) | 990.79 mi (1,594.52 km) |
| Callaway to Rosamond (California) | 1,922.28 mi (3,093.62 km) |
| Callaway to Rosaryville (Maryland) | 775.80 mi (1,248.52 km) |
| Callaway to Roscoe (Illinois) | 870.48 mi (1,400.90 km) |
| Callaway to Rose Hill (Virginia) | 766.69 mi (1,233.88 km) |
| Callaway to Roseburg (Oregon) | 2,257.16 mi (3,632.55 km) |
| Callaway to Rosedale (California) | 1,978.70 mi (3,184.41 km) |
| Callaway to Rosedale (Maryland) | 815.94 mi (1,313.13 km) |
| Callaway to Roselle (Illinois) | 830.47 mi (1,336.51 km) |
| Callaway to Roselle (New Jersey) | 964.19 mi (1,551.72 km) |
| Callaway to Roselle Park (New Jersey) | 964.56 mi (1,552.32 km) |
| Callaway to Rosemead (California) | 1,914.88 mi (3,081.70 km) |
