| Niederkassel to Rivarolo Canavese | 380.32 mi (612.06 km) |
| Niederkassel to Rivoli | 397.71 mi (640.05 km) |
| Niederkassel to Rocca di Papa | 681.12 mi (1,096.16 km) |
| Niederkassel to Rocca Priora | 681.00 mi (1,095.97 km) |
| Niederkassel to Roccapiemonte | 785.68 mi (1,264.42 km) |
| Niederkassel to Roccastrada | 573.40 mi (922.79 km) |
| Niederkassel to Romano di Lombardia | 386.93 mi (622.71 km) |
| Niederkassel to Rome | 668.63 mi (1,076.06 km) |
| Niederkassel to Roncade | 434.71 mi (699.60 km) |
| Niederkassel to Ronchi dei Legionari | 454.42 mi (731.32 km) |
| Niederkassel to Ronciglione | 638.15 mi (1,027.00 km) |
| Niederkassel to Rosa | 414.00 mi (666.27 km) |
| Niederkassel to Rosarno | 957.19 mi (1,540.44 km) |
| Niederkassel to Rosignano Marittimo | 537.12 mi (864.42 km) |
| Niederkassel to Rosolini | 1,043.27 mi (1,678.98 km) |
