| Castel Bolognese to Rodgau | 416.90 mi (670.93 km) |
| Castel Bolognese to Roding | 339.10 mi (545.73 km) |
| Castel Bolognese to Rodinghausen | 569.15 mi (915.95 km) |
| Castel Bolognese to Roetgen | 509.42 mi (819.83 km) |
| Castel Bolognese to Rommerskirchen | 521.17 mi (838.74 km) |
| Castel Bolognese to Ronnenberg | 561.57 mi (903.77 km) |
| Castel Bolognese to Rosbach vor der Hohe | 437.97 mi (704.85 km) |
| Castel Bolognese to Rosdorf | 504.01 mi (811.13 km) |
| Castel Bolognese to Rosenheim | 244.65 mi (393.72 km) |
| Castel Bolognese to Rosrath | 502.89 mi (809.33 km) |
| Castel Bolognese to Rossdorf | 408.71 mi (657.75 km) |
| Castel Bolognese to Rosstal | 353.87 mi (569.51 km) |
| Castel Bolognese to Rostock | 674.97 mi (1,086.26 km) |
| Castel Bolognese to Rotenburg an der Fulda | 471.42 mi (758.67 km) |
| Castel Bolognese to Roth | 342.23 mi (550.77 km) |
