| Colonia to Rodgau | 3,882.75 mi (6,248.68 km) |
| Colonia to Roding | 4,053.62 mi (6,523.68 km) |
| Colonia to Rodinghausen | 3,803.86 mi (6,121.72 km) |
| Colonia to Roetgen | 3,756.83 mi (6,046.03 km) |
| Colonia to Rommerskirchen | 3,766.24 mi (6,061.18 km) |
| Colonia to Ronnenberg | 3,847.56 mi (6,192.05 km) |
| Colonia to Rosbach vor der Hohe | 3,867.26 mi (6,223.75 km) |
| Colonia to Rosdorf | 3,880.29 mi (6,244.72 km) |
| Colonia to Rosenheim | 4,081.41 mi (6,568.40 km) |
| Colonia to Rosrath | 3,789.58 mi (6,098.74 km) |
| Colonia to Rossdorf | 3,882.19 mi (6,247.79 km) |
| Colonia to Rosstal | 3,981.74 mi (6,407.99 km) |
| Colonia to Rostock | 3,891.31 mi (6,262.45 km) |
| Colonia to Rotenburg an der Fulda | 3,888.05 mi (6,257.21 km) |
| Colonia to Roth | 3,994.86 mi (6,429.10 km) |
