| Gengenbach to Devnya | 1,003.92 mi (1,615.65 km) |
| Gengenbach to Dimitrovgrad | 958.51 mi (1,542.57 km) |
| Gengenbach to Dobrich | 1,004.87 mi (1,617.18 km) |
| Gengenbach to Dospat | 913.56 mi (1,470.23 km) |
| Gengenbach to Dupnitsa | 845.02 mi (1,359.94 km) |
| Gengenbach to Elhovo | 995.92 mi (1,602.78 km) |
| Gengenbach to Etropole | 860.62 mi (1,385.04 km) |
| Gengenbach to Gabrovo | 917.13 mi (1,475.97 km) |
| Gengenbach to Gorna Oryahovitsa | 923.98 mi (1,487.01 km) |
| Gengenbach to Gotse Delchev | 899.00 mi (1,446.81 km) |
| Gengenbach to Harmanli | 975.81 mi (1,570.42 km) |
| Gengenbach to Haskovo | 961.52 mi (1,547.42 km) |
| Gengenbach to Ihtiman | 867.65 mi (1,396.34 km) |
| Gengenbach to Isperih | 955.46 mi (1,537.66 km) |
| Gengenbach to Kardzhali | 964.02 mi (1,551.43 km) |
