| Niederkassel to Racconigi | 419.10 mi (674.47 km) |
| Niederkassel to Raffadali | 980.23 mi (1,577.53 km) |
| Niederkassel to Ragusa | 1,032.19 mi (1,661.15 km) |
| Niederkassel to Ramacca | 1,001.77 mi (1,612.19 km) |
| Niederkassel to Randazzo | 974.11 mi (1,567.68 km) |
| Niederkassel to Rapallo | 458.36 mi (737.66 km) |
| Niederkassel to Ravanusa | 996.42 mi (1,603.59 km) |
| Niederkassel to Ravenna | 503.21 mi (809.84 km) |
| Niederkassel to Recanati | 596.55 mi (960.05 km) |
| Niederkassel to Recco | 456.38 mi (734.48 km) |
| Niederkassel to Reggello | 535.90 mi (862.45 km) |
| Niederkassel to Reggio di Calabria | 973.52 mi (1,566.73 km) |
| Niederkassel to Reggio Emilia | 454.36 mi (731.22 km) |
| Niederkassel to Reggiolo | 443.62 mi (713.94 km) |
| Niederkassel to Rende | 908.81 mi (1,462.60 km) |
