| Forbach to Popovo | 1,004.02 mi (1,615.82 km) |
| Forbach to Provadia | 1,061.97 mi (1,709.08 km) |
| Forbach to Radnevo | 1,029.87 mi (1,657.42 km) |
| Forbach to Radomir | 895.48 mi (1,441.13 km) |
| Forbach to Rakitovo | 965.34 mi (1,553.57 km) |
| Forbach to Rakovski | 989.57 mi (1,592.56 km) |
| Forbach to Razgrad | 1,010.00 mi (1,625.44 km) |
| Forbach to Razlog | 944.37 mi (1,519.82 km) |
| Forbach to Ruse | 975.67 mi (1,570.20 km) |
| Forbach to Samokov | 929.06 mi (1,495.18 km) |
| Forbach to Sandanski | 950.51 mi (1,529.70 km) |
| Forbach to Sevlievo | 967.55 mi (1,557.12 km) |
| Forbach to Shumen | 1,036.74 mi (1,668.47 km) |
| Forbach to Silistra | 1,023.43 mi (1,647.06 km) |
| Forbach to Sliven | 1,032.38 mi (1,661.46 km) |
