| University of California-Santa Barbara to Ratingen | 5,691.19 mi (9,159.09 km) |
| University of California-Santa Barbara to Ratzeburg | 5,671.85 mi (9,127.96 km) |
| University of California-Santa Barbara to Raubling | 6,028.27 mi (9,701.56 km) |
| University of California-Santa Barbara to Rauenberg | 5,850.78 mi (9,415.92 km) |
| University of California-Santa Barbara to Raunheim | 5,804.06 mi (9,340.73 km) |
| University of California-Santa Barbara to Ravensburg | 5,956.05 mi (9,585.33 km) |
| University of California-Santa Barbara to Recke | 5,660.53 mi (9,109.74 km) |
| University of California-Santa Barbara to Recklinghausen | 5,685.45 mi (9,149.85 km) |
| University of California-Santa Barbara to Regen | 5,992.46 mi (9,643.94 km) |
| University of California-Santa Barbara to Regensburg | 5,960.70 mi (9,592.82 km) |
| University of California-Santa Barbara to Regenstauf | 5,956.13 mi (9,585.46 km) |
| University of California-Santa Barbara to Rehau | 5,891.72 mi (9,481.80 km) |
| University of California-Santa Barbara to Rehburg-Loccum | 5,697.30 mi (9,168.91 km) |
| University of California-Santa Barbara to Rehlingen-Siersburg | 5,785.57 mi (9,310.98 km) |
| University of California-Santa Barbara to Reichelsheim | 5,831.19 mi (9,384.39 km) |
