| Castel Gandolfo to Ratingen | 714.81 mi (1,150.37 km) |
| Castel Gandolfo to Ratzeburg | 830.52 mi (1,336.59 km) |
| Castel Gandolfo to Raubling | 418.27 mi (673.13 km) |
| Castel Gandolfo to Rauenberg | 553.50 mi (890.77 km) |
| Castel Gandolfo to Raunheim | 605.82 mi (974.98 km) |
| Castel Gandolfo to Ravensburg | 442.84 mi (712.68 km) |
| Castel Gandolfo to Recke | 769.38 mi (1,238.19 km) |
| Castel Gandolfo to Recklinghausen | 727.37 mi (1,170.58 km) |
| Castel Gandolfo to Regen | 499.38 mi (803.68 km) |
| Castel Gandolfo to Regensburg | 503.05 mi (809.58 km) |
| Castel Gandolfo to Regenstauf | 510.31 mi (821.26 km) |
| Castel Gandolfo to Rehau | 588.29 mi (946.76 km) |
| Castel Gandolfo to Rehburg-Loccum | 756.87 mi (1,218.07 km) |
| Castel Gandolfo to Rehlingen-Siersburg | 600.23 mi (965.98 km) |
| Castel Gandolfo to Reichelsheim | 580.23 mi (933.78 km) |
