| Forbach to Devnya | 1,066.63 mi (1,716.58 km) |
| Forbach to Dimitrovgrad | 1,025.63 mi (1,650.59 km) |
| Forbach to Dobrich | 1,066.47 mi (1,716.31 km) |
| Forbach to Dospat | 982.74 mi (1,581.56 km) |
| Forbach to Dupnitsa | 914.14 mi (1,471.17 km) |
| Forbach to Elhovo | 1,061.89 mi (1,708.95 km) |
| Forbach to Etropole | 927.75 mi (1,493.07 km) |
| Forbach to Gabrovo | 982.84 mi (1,581.72 km) |
| Forbach to Gorna Oryahovitsa | 988.72 mi (1,591.19 km) |
| Forbach to Gotse Delchev | 968.71 mi (1,558.99 km) |
| Forbach to Harmanli | 1,042.87 mi (1,678.33 km) |
| Forbach to Haskovo | 1,028.90 mi (1,655.85 km) |
| Forbach to Ihtiman | 935.76 mi (1,505.96 km) |
| Forbach to Isperih | 1,017.64 mi (1,637.73 km) |
| Forbach to Kardzhali | 1,032.08 mi (1,660.98 km) |
