| Clarksburg to Ratingen | 3,945.25 mi (6,349.27 km) |
| Clarksburg to Ratzeburg | 4,027.93 mi (6,482.33 km) |
| Clarksburg to Raubling | 4,263.07 mi (6,860.74 km) |
| Clarksburg to Rauenberg | 4,078.00 mi (6,562.91 km) |
| Clarksburg to Raunheim | 4,045.57 mi (6,510.71 km) |
| Clarksburg to Ravensburg | 4,160.73 mi (6,696.04 km) |
| Clarksburg to Recke | 3,950.01 mi (6,356.92 km) |
| Clarksburg to Recklinghausen | 3,949.76 mi (6,356.52 km) |
| Clarksburg to Regen | 4,265.86 mi (6,865.24 km) |
| Clarksburg to Regensburg | 4,222.24 mi (6,795.04 km) |
| Clarksburg to Regenstauf | 4,220.60 mi (6,792.40 km) |
| Clarksburg to Rehau | 4,180.30 mi (6,727.55 km) |
| Clarksburg to Rehburg-Loccum | 4,005.19 mi (6,445.74 km) |
| Clarksburg to Rehlingen-Siersburg | 3,992.43 mi (6,425.19 km) |
| Clarksburg to Reichelsheim | 4,070.17 mi (6,550.30 km) |
