| Castel Bolognese to Racconigi | 205.08 mi (330.04 km) |
| Castel Bolognese to Raffadali | 486.06 mi (782.24 km) |
| Castel Bolognese to Ragusa | 533.24 mi (858.17 km) |
| Castel Bolognese to Ramacca | 502.36 mi (808.48 km) |
| Castel Bolognese to Randazzo | 473.70 mi (762.34 km) |
| Castel Bolognese to Rapallo | 126.87 mi (204.17 km) |
| Castel Bolognese to Ravanusa | 500.03 mi (804.72 km) |
| Castel Bolognese to Ravenna | 21.00 mi (33.79 km) |
| Castel Bolognese to Recanati | 107.76 mi (173.42 km) |
| Castel Bolognese to Recco | 130.99 mi (210.81 km) |
| Castel Bolognese to Reggello | 45.73 mi (73.59 km) |
| Castel Bolognese to Reggio di Calabria | 472.81 mi (760.91 km) |
| Castel Bolognese to Reggio Emilia | 63.29 mi (101.86 km) |
| Castel Bolognese to Reggiolo | 63.70 mi (102.51 km) |
| Castel Bolognese to Rende | 411.54 mi (662.32 km) |
