| Kardzhali to Rapperswil-Jona | 900.19 mi (1,448.71 km) |
| Kardzhali to Regensdorf | 920.62 mi (1,481.59 km) |
| Kardzhali to Reinach | 960.78 mi (1,546.23 km) |
| Kardzhali to Renens | 988.38 mi (1,590.65 km) |
| Kardzhali to Rheinfelden | 952.66 mi (1,533.16 km) |
| Kardzhali to Richterswil | 905.36 mi (1,457.04 km) |
| Kardzhali to Riehen | 960.76 mi (1,546.20 km) |
| Kardzhali to Risch | 915.64 mi (1,473.58 km) |
| Kardzhali to Romanshorn | 884.89 mi (1,424.09 km) |
| Kardzhali to Rorschach | 876.20 mi (1,410.11 km) |
| Kardzhali to Rothrist | 943.56 mi (1,518.52 km) |
| Kardzhali to Ruti | 899.86 mi (1,448.19 km) |
| Kardzhali to Sankt Gallen | 880.76 mi (1,417.45 km) |
| Kardzhali to Sarnen | 918.85 mi (1,478.75 km) |
| Kardzhali to Schaffhausen | 919.69 mi (1,480.09 km) |
