| Castel Bolognese to Redon | 704.13 mi (1,133.18 km) |
| Castel Bolognese to Reims | 501.25 mi (806.69 km) |
| Castel Bolognese to Rennes | 694.63 mi (1,117.90 km) |
| Castel Bolognese to Revel | 491.08 mi (790.31 km) |
| Castel Bolognese to Reze | 673.45 mi (1,083.82 km) |
| Castel Bolognese to Riedisheim | 318.38 mi (512.39 km) |
| Castel Bolognese to Rillieux-la-Pape | 352.33 mi (567.02 km) |
| Castel Bolognese to Riom | 437.20 mi (703.60 km) |
| Castel Bolognese to Riorges | 396.08 mi (637.43 km) |
| Castel Bolognese to Ris-Orangis | 537.07 mi (864.33 km) |
| Castel Bolognese to Rive-de-Gier | 361.13 mi (581.17 km) |
| Castel Bolognese to Rivesaltes | 459.40 mi (739.33 km) |
| Castel Bolognese to Rixheim | 317.20 mi (510.48 km) |
| Castel Bolognese to Roanne | 394.66 mi (635.15 km) |
| Castel Bolognese to Roche-la-Moliere | 373.96 mi (601.84 km) |
