| Allentown to Rodgau | 3,929.22 mi (6,323.48 km) |
| Allentown to Roding | 4,099.84 mi (6,598.06 km) |
| Allentown to Rodinghausen | 3,848.69 mi (6,193.87 km) |
| Allentown to Roetgen | 3,803.41 mi (6,120.99 km) |
| Allentown to Rommerskirchen | 3,812.42 mi (6,135.50 km) |
| Allentown to Ronnenberg | 3,892.09 mi (6,263.71 km) |
| Allentown to Rosbach vor der Hohe | 3,913.57 mi (6,298.27 km) |
| Allentown to Rosdorf | 3,925.41 mi (6,317.34 km) |
| Allentown to Rosenheim | 4,128.67 mi (6,644.45 km) |
| Allentown to Rosrath | 3,835.76 mi (6,173.06 km) |
| Allentown to Rossdorf | 3,928.82 mi (6,322.82 km) |
| Allentown to Rosstal | 4,028.21 mi (6,482.78 km) |
| Allentown to Rostock | 3,933.85 mi (6,330.93 km) |
| Allentown to Rotenburg an der Fulda | 3,933.59 mi (6,330.51 km) |
| Allentown to Roth | 4,041.39 mi (6,503.99 km) |
