| Castaic to Rheinbach | 5,688.46 mi (9,154.69 km) |
| Castaic to Rheinberg | 5,631.81 mi (9,063.53 km) |
| Castaic to Rheine | 5,618.42 mi (9,041.97 km) |
| Castaic to Rheinfelden (Baden) | 5,871.38 mi (9,449.08 km) |
| Castaic to Ribnitz-Damgarten | 5,650.80 mi (9,094.09 km) |
| Castaic to Richterich | 5,653.16 mi (9,097.88 km) |
| Castaic to Riedlingen | 5,891.80 mi (9,481.93 km) |
| Castaic to Riegelsberg | 5,756.28 mi (9,263.84 km) |
| Castaic to Rielasingen-Worblingen | 5,894.65 mi (9,486.52 km) |
| Castaic to Riesa | 5,831.48 mi (9,384.86 km) |
| Castaic to Rietberg | 5,671.67 mi (9,127.67 km) |
| Castaic to Rinteln | 5,669.66 mi (9,124.43 km) |
| Castaic to Ritterhude | 5,609.07 mi (9,026.93 km) |
| Castaic to Rodenbach | 5,774.52 mi (9,293.19 km) |
| Castaic to Rodental | 5,825.67 mi (9,375.51 km) |
