| Catonsville to Reichenbach/Vogtland | 4,157.51 mi (6,690.86 km) |
| Catonsville to Reinbek | 3,993.04 mi (6,426.18 km) |
| Catonsville to Reinfeld | 3,992.74 mi (6,425.69 km) |
| Catonsville to Reinheim | 4,043.57 mi (6,507.50 km) |
| Catonsville to Reiskirchen | 4,021.14 mi (6,471.40 km) |
| Catonsville to Rellingen | 3,972.91 mi (6,393.78 km) |
| Catonsville to Remagen | 3,957.65 mi (6,369.22 km) |
| Catonsville to Remscheid | 3,939.71 mi (6,340.36 km) |
| Catonsville to Rendsburg | 3,949.51 mi (6,356.12 km) |
| Catonsville to Renningen | 4,079.33 mi (6,565.05 km) |
| Catonsville to Reutlingen | 4,099.47 mi (6,597.45 km) |
| Catonsville to Rhaude | 3,900.03 mi (6,276.50 km) |
| Catonsville to Rheda-Wiedenbruck | 3,964.91 mi (6,380.90 km) |
| Catonsville to Rhede | 3,902.37 mi (6,280.26 km) |
| Catonsville to Rheinau | 4,041.13 mi (6,503.57 km) |
