| Rielasingen-Worblingen to Popovo | 892.20 mi (1,435.85 km) |
| Rielasingen-Worblingen to Provadia | 951.56 mi (1,531.39 km) |
| Rielasingen-Worblingen to Radnevo | 912.85 mi (1,469.10 km) |
| Rielasingen-Worblingen to Radomir | 773.74 mi (1,245.22 km) |
| Rielasingen-Worblingen to Rakitovo | 843.66 mi (1,357.74 km) |
| Rielasingen-Worblingen to Rakovski | 870.69 mi (1,401.24 km) |
| Rielasingen-Worblingen to Razgrad | 899.60 mi (1,447.76 km) |
| Rielasingen-Worblingen to Razlog | 821.19 mi (1,321.58 km) |
| Rielasingen-Worblingen to Ruse | 865.69 mi (1,393.20 km) |
| Rielasingen-Worblingen to Samokov | 807.68 mi (1,299.84 km) |
| Rielasingen-Worblingen to Sandanski | 825.97 mi (1,329.27 km) |
| Rielasingen-Worblingen to Sevlievo | 852.07 mi (1,371.27 km) |
| Rielasingen-Worblingen to Shumen | 925.89 mi (1,490.07 km) |
| Rielasingen-Worblingen to Silistra | 917.41 mi (1,476.42 km) |
| Rielasingen-Worblingen to Sliven | 917.70 mi (1,476.90 km) |
