| Kardzhali to Rheinberg | 1,117.56 mi (1,798.54 km) |
| Kardzhali to Rheine | 1,114.68 mi (1,793.91 km) |
| Kardzhali to Rheinfelden (Baden) | 953.28 mi (1,534.15 km) |
| Kardzhali to Ribnitz-Damgarten | 1,052.00 mi (1,693.03 km) |
| Kardzhali to Richterich | 1,113.47 mi (1,791.96 km) |
| Kardzhali to Riedlingen | 895.84 mi (1,441.72 km) |
| Kardzhali to Riegelsberg | 1,033.41 mi (1,663.11 km) |
| Kardzhali to Rielasingen-Worblingen | 911.58 mi (1,467.05 km) |
| Kardzhali to Riesa | 878.19 mi (1,413.32 km) |
| Kardzhali to Rietberg | 1,060.75 mi (1,707.11 km) |
| Kardzhali to Rinteln | 1,054.29 mi (1,696.71 km) |
| Kardzhali to Ritterhude | 1,107.55 mi (1,782.42 km) |
| Kardzhali to Rodenbach | 977.13 mi (1,572.55 km) |
| Kardzhali to Rodental | 906.88 mi (1,459.48 km) |
| Kardzhali to Rodgau | 978.23 mi (1,574.31 km) |
