| Oak Forest to Ratingen | 4,233.33 mi (6,812.88 km) |
| Oak Forest to Ratzeburg | 4,282.84 mi (6,892.56 km) |
| Oak Forest to Raubling | 4,564.25 mi (7,345.45 km) |
| Oak Forest to Rauenberg | 4,378.16 mi (7,045.96 km) |
| Oak Forest to Raunheim | 4,340.11 mi (6,984.73 km) |
| Oak Forest to Ravensburg | 4,470.32 mi (7,194.29 km) |
| Oak Forest to Recke | 4,225.89 mi (6,800.91 km) |
| Oak Forest to Recklinghausen | 4,234.36 mi (6,814.54 km) |
| Oak Forest to Regen | 4,553.97 mi (7,328.90 km) |
| Oak Forest to Regensburg | 4,513.49 mi (7,263.76 km) |
| Oak Forest to Regenstauf | 4,510.82 mi (7,259.46 km) |
| Oak Forest to Rehau | 4,461.49 mi (7,180.07 km) |
| Oak Forest to Rehburg-Loccum | 4,275.98 mi (6,881.52 km) |
| Oak Forest to Rehlingen-Siersburg | 4,298.01 mi (6,916.98 km) |
| Oak Forest to Reichelsheim | 4,366.08 mi (7,026.53 km) |
