| Herdecke to Devnya | 1,094.33 mi (1,761.16 km) |
| Herdecke to Dimitrovgrad | 1,071.07 mi (1,723.72 km) |
| Herdecke to Dobrich | 1,090.23 mi (1,754.55 km) |
| Herdecke to Dospat | 1,038.08 mi (1,670.63 km) |
| Herdecke to Dupnitsa | 970.11 mi (1,561.24 km) |
| Herdecke to Elhovo | 1,102.09 mi (1,773.64 km) |
| Herdecke to Etropole | 974.56 mi (1,568.40 km) |
| Herdecke to Gabrovo | 1,023.01 mi (1,646.38 km) |
| Herdecke to Gorna Oryahovitsa | 1,025.01 mi (1,649.59 km) |
| Herdecke to Gotse Delchev | 1,026.86 mi (1,652.57 km) |
| Herdecke to Harmanli | 1,087.82 mi (1,750.67 km) |
| Herdecke to Haskovo | 1,075.38 mi (1,730.65 km) |
| Herdecke to Ihtiman | 986.76 mi (1,588.03 km) |
| Herdecke to Isperih | 1,044.10 mi (1,680.32 km) |
| Herdecke to Kardzhali | 1,081.61 mi (1,740.68 km) |
