| Castel Gandolfo to Racconigi | 325.53 mi (523.90 km) |
| Castel Gandolfo to Raffadali | 303.67 mi (488.70 km) |
| Castel Gandolfo to Ragusa | 351.16 mi (565.14 km) |
| Castel Gandolfo to Ramacca | 320.60 mi (515.95 km) |
| Castel Gandolfo to Randazzo | 293.46 mi (472.28 km) |
| Castel Gandolfo to Rapallo | 249.24 mi (401.11 km) |
| Castel Gandolfo to Ravanusa | 317.34 mi (510.70 km) |
| Castel Gandolfo to Ravenna | 185.82 mi (299.04 km) |
| Castel Gandolfo to Recanati | 123.02 mi (197.98 km) |
| Castel Gandolfo to Recco | 252.98 mi (407.12 km) |
| Castel Gandolfo to Reggello | 145.34 mi (233.90 km) |
| Castel Gandolfo to Reggio di Calabria | 296.98 mi (477.94 km) |
| Castel Gandolfo to Reggio Emilia | 227.93 mi (366.82 km) |
| Castel Gandolfo to Reggiolo | 237.62 mi (382.42 km) |
| Castel Gandolfo to Rende | 249.34 mi (401.28 km) |
