| Kardzhali to Ramnicu Sarat | 271.31 mi (436.63 km) |
| Kardzhali to Ramnicu Valcea | 243.83 mi (392.40 km) |
| Kardzhali to Rasnov | 272.50 mi (438.54 km) |
| Kardzhali to Reghin | 355.65 mi (572.37 km) |
| Kardzhali to Resita | 306.57 mi (493.38 km) |
| Kardzhali to Roman | 372.89 mi (600.11 km) |
| Kardzhali to Rosiori de Vede | 171.11 mi (275.37 km) |
| Kardzhali to Rovinari | 251.19 mi (404.25 km) |
| Kardzhali to Roznov | 362.73 mi (583.76 km) |
| Kardzhali to Sabaoani | 377.96 mi (608.27 km) |
| Kardzhali to Sacele | 274.84 mi (442.30 km) |
| Kardzhali to Sacueni | 425.68 mi (685.07 km) |
| Kardzhali to Salcea | 417.47 mi (671.86 km) |
| Kardzhali to Salonta | 400.48 mi (644.52 km) |
| Kardzhali to Sangeorgiu de Mures | 341.48 mi (549.56 km) |
