| Cities | Distance |
|---|---|
| Gengenbach to Popovo | 940.33 mi (1,513.32 km) |
| Gengenbach to Provadia | 999.05 mi (1,607.82 km) |
| Gengenbach to Radnevo | 963.56 mi (1,550.70 km) |
| Gengenbach to Radomir | 826.72 mi (1,330.48 km) |
| Gengenbach to Rakitovo | 896.65 mi (1,443.02 km) |
| Gengenbach to Rakovski | 922.30 mi (1,484.29 km) |
| Gengenbach to Razgrad | 947.04 mi (1,524.12 km) |
| Gengenbach to Razlog | 874.92 mi (1,408.05 km) |
| Gengenbach to Ruse | 912.90 mi (1,469.17 km) |
| Gengenbach to Samokov | 860.50 mi (1,384.84 km) |
| Gengenbach to Sandanski | 880.39 mi (1,416.86 km) |
| Gengenbach to Sevlievo | 901.97 mi (1,451.59 km) |
| Gengenbach to Shumen | 973.57 mi (1,566.81 km) |
| Gengenbach to Silistra | 962.73 mi (1,549.37 km) |
| Gengenbach to Sliven | 967.26 mi (1,556.65 km) |