| Colonia to Ratingen | 3,765.45 mi (6,059.91 km) |
| Colonia to Ratzeburg | 3,850.67 mi (6,197.05 km) |
| Colonia to Raubling | 4,082.24 mi (6,569.74 km) |
| Colonia to Rauenberg | 3,897.35 mi (6,272.17 km) |
| Colonia to Raunheim | 3,865.27 mi (6,220.55 km) |
| Colonia to Ravensburg | 3,979.51 mi (6,404.40 km) |
| Colonia to Recke | 3,771.09 mi (6,068.98 km) |
| Colonia to Recklinghausen | 3,770.19 mi (6,067.54 km) |
| Colonia to Regen | 4,085.82 mi (6,575.49 km) |
| Colonia to Regensburg | 4,042.03 mi (6,505.02 km) |
| Colonia to Regenstauf | 4,040.46 mi (6,502.49 km) |
| Colonia to Rehau | 4,000.80 mi (6,438.66 km) |
| Colonia to Rehburg-Loccum | 3,826.62 mi (6,158.35 km) |
| Colonia to Rehlingen-Siersburg | 3,811.52 mi (6,134.04 km) |
| Colonia to Reichelsheim | 3,889.77 mi (6,259.98 km) |
