| Clarksville to Rheinbach | 4,491.62 mi (7,228.57 km) |
| Clarksville to Rheinberg | 4,448.93 mi (7,159.86 km) |
| Clarksville to Rheine | 4,456.99 mi (7,172.83 km) |
| Clarksville to Rheinfelden (Baden) | 4,627.21 mi (7,446.77 km) |
| Clarksville to Ribnitz-Damgarten | 4,573.75 mi (7,360.74 km) |
| Clarksville to Richterich | 4,451.61 mi (7,164.17 km) |
| Clarksville to Riedlingen | 4,674.14 mi (7,522.29 km) |
| Clarksville to Riegelsberg | 4,534.83 mi (7,298.11 km) |
| Clarksville to Rielasingen-Worblingen | 4,663.52 mi (7,505.22 km) |
| Clarksville to Riesa | 4,707.90 mi (7,576.63 km) |
| Clarksville to Rietberg | 4,510.19 mi (7,258.44 km) |
| Clarksville to Rinteln | 4,521.52 mi (7,276.69 km) |
| Clarksville to Ritterhude | 4,476.94 mi (7,204.94 km) |
| Clarksville to Rodenbach | 4,588.15 mi (7,383.92 km) |
| Clarksville to Rodental | 4,661.36 mi (7,501.74 km) |
