| Oro Valley to Ratingen | 5,533.91 mi (8,905.97 km) |
| Oro Valley to Ratzeburg | 5,544.98 mi (8,923.79 km) |
| Oro Valley to Raubling | 5,871.46 mi (9,449.20 km) |
| Oro Valley to Rauenberg | 5,688.23 mi (9,154.33 km) |
| Oro Valley to Raunheim | 5,645.10 mi (9,084.92 km) |
| Oro Valley to Ravensburg | 5,788.29 mi (9,315.35 km) |
| Oro Valley to Recke | 5,513.46 mi (8,873.05 km) |
| Oro Valley to Recklinghausen | 5,531.21 mi (8,901.62 km) |
| Oro Valley to Regen | 5,847.12 mi (9,410.02 km) |
| Oro Valley to Regensburg | 5,811.03 mi (9,351.95 km) |
| Oro Valley to Regenstauf | 5,807.29 mi (9,345.93 km) |
| Oro Valley to Rehau | 5,749.08 mi (9,252.26 km) |
| Oro Valley to Rehburg-Loccum | 5,556.57 mi (8,942.43 km) |
| Oro Valley to Rehlingen-Siersburg | 5,615.37 mi (9,037.06 km) |
| Oro Valley to Reichelsheim | 5,671.96 mi (9,128.14 km) |
