| Romeoville to Ratingen | 4,244.77 mi (6,831.29 km) |
| Romeoville to Ratzeburg | 4,293.35 mi (6,909.47 km) |
| Romeoville to Raubling | 4,575.95 mi (7,364.29 km) |
| Romeoville to Rauenberg | 4,389.89 mi (7,064.84 km) |
| Romeoville to Raunheim | 4,351.69 mi (7,003.37 km) |
| Romeoville to Ravensburg | 4,482.28 mi (7,213.54 km) |
| Romeoville to Recke | 4,237.00 mi (6,818.79 km) |
| Romeoville to Recklinghausen | 4,245.70 mi (6,832.80 km) |
| Romeoville to Regen | 4,565.32 mi (7,347.17 km) |
| Romeoville to Regensburg | 4,524.93 mi (7,282.18 km) |
| Romeoville to Regenstauf | 4,522.23 mi (7,277.83 km) |
| Romeoville to Rehau | 4,472.67 mi (7,198.07 km) |
| Romeoville to Rehburg-Loccum | 4,286.93 mi (6,899.14 km) |
| Romeoville to Rehlingen-Siersburg | 4,309.91 mi (6,936.13 km) |
| Romeoville to Reichelsheim | 4,377.70 mi (7,045.23 km) |
