| Castel Bolognese to Rheinbach | 491.45 mi (790.91 km) |
| Castel Bolognese to Rheinberg | 554.16 mi (891.84 km) |
| Castel Bolognese to Rheine | 585.61 mi (942.46 km) |
| Castel Bolognese to Rheinfelden (Baden) | 295.46 mi (475.49 km) |
| Castel Bolognese to Ribnitz-Damgarten | 686.97 mi (1,105.58 km) |
| Castel Bolognese to Richterich | 521.89 mi (839.90 km) |
| Castel Bolognese to Riedlingen | 287.56 mi (462.79 km) |
| Castel Bolognese to Riegelsberg | 413.51 mi (665.49 km) |
| Castel Bolognese to Rielasingen-Worblingen | 275.51 mi (443.40 km) |
| Castel Bolognese to Riesa | 487.98 mi (785.33 km) |
| Castel Bolognese to Rietberg | 539.76 mi (868.66 km) |
| Castel Bolognese to Rinteln | 558.12 mi (898.20 km) |
| Castel Bolognese to Ritterhude | 628.14 mi (1,010.89 km) |
| Castel Bolognese to Rodenbach | 423.35 mi (681.31 km) |
| Castel Bolognese to Rodental | 413.68 mi (665.75 km) |
