| Oak Park to Ratingen | 4,221.01 mi (6,793.05 km) |
| Oak Park to Ratzeburg | 4,269.55 mi (6,871.18 km) |
| Oak Park to Raubling | 4,552.22 mi (7,326.09 km) |
| Oak Park to Rauenberg | 4,366.16 mi (7,026.65 km) |
| Oak Park to Raunheim | 4,327.95 mi (6,965.16 km) |
| Oak Park to Ravensburg | 4,458.59 mi (7,175.40 km) |
| Oak Park to Recke | 4,213.21 mi (6,780.51 km) |
| Oak Park to Recklinghausen | 4,221.93 mi (6,794.54 km) |
| Oak Park to Regen | 4,541.55 mi (7,308.91 km) |
| Oak Park to Regensburg | 4,501.17 mi (7,243.94 km) |
| Oak Park to Regenstauf | 4,498.47 mi (7,239.59 km) |
| Oak Park to Rehau | 4,448.89 mi (7,159.80 km) |
| Oak Park to Rehburg-Loccum | 4,263.13 mi (6,860.85 km) |
| Oak Park to Rehlingen-Siersburg | 4,286.21 mi (6,897.98 km) |
| Oak Park to Reichelsheim | 4,353.96 mi (7,007.02 km) |
