| Borken to Popovo | 1,070.92 mi (1,723.47 km) |
| Borken to Provadia | 1,124.79 mi (1,810.17 km) |
| Borken to Radnevo | 1,107.60 mi (1,782.50 km) |
| Borken to Radomir | 986.93 mi (1,588.31 km) |
| Borken to Rakitovo | 1,055.33 mi (1,698.40 km) |
| Borken to Rakovski | 1,072.32 mi (1,725.73 km) |
| Borken to Razgrad | 1,073.82 mi (1,728.14 km) |
| Borken to Razlog | 1,038.56 mi (1,671.40 km) |
| Borken to Ruse | 1,039.36 mi (1,672.69 km) |
| Borken to Samokov | 1,018.97 mi (1,639.87 km) |
| Borken to Sandanski | 1,048.24 mi (1,686.98 km) |
| Borken to Sevlievo | 1,043.00 mi (1,678.55 km) |
| Borken to Shumen | 1,100.94 mi (1,771.79 km) |
| Borken to Silistra | 1,078.22 mi (1,735.23 km) |
| Borken to Sliven | 1,104.83 mi (1,778.05 km) |
