| Troisdorf to Rheinbach | 15.50 mi (24.95 km) |
| Troisdorf to Rheinberg | 55.91 mi (89.98 km) |
| Troisdorf to Rheine | 102.07 mi (164.27 km) |
| Troisdorf to Rheinfelden (Baden) | 226.72 mi (364.88 km) |
| Troisdorf to Ribnitz-Damgarten | 325.59 mi (523.98 km) |
| Troisdorf to Richterich | 47.72 mi (76.80 km) |
| Troisdorf to Riedlingen | 211.20 mi (339.89 km) |
| Troisdorf to Riegelsberg | 105.60 mi (169.94 km) |
| Troisdorf to Rielasingen-Worblingen | 226.02 mi (363.75 km) |
| Troisdorf to Riesa | 268.62 mi (432.31 km) |
| Troisdorf to Rietberg | 87.56 mi (140.91 km) |
| Troisdorf to Rinteln | 126.00 mi (202.78 km) |
| Troisdorf to Ritterhude | 177.36 mi (285.43 km) |
| Troisdorf to Rodenbach | 94.51 mi (152.10 km) |
| Troisdorf to Rodental | 175.59 mi (282.58 km) |
