| Heidenheim to Devnya | 914.91 mi (1,472.41 km) |
| Heidenheim to Dimitrovgrad | 876.10 mi (1,409.94 km) |
| Heidenheim to Dobrich | 914.59 mi (1,471.89 km) |
| Heidenheim to Dospat | 835.55 mi (1,344.68 km) |
| Heidenheim to Dupnitsa | 766.98 mi (1,234.33 km) |
| Heidenheim to Elhovo | 911.48 mi (1,466.88 km) |
| Heidenheim to Etropole | 778.32 mi (1,252.58 km) |
| Heidenheim to Gabrovo | 832.31 mi (1,339.47 km) |
| Heidenheim to Gorna Oryahovitsa | 837.67 mi (1,348.10 km) |
| Heidenheim to Gotse Delchev | 822.34 mi (1,323.43 km) |
| Heidenheim to Harmanli | 893.26 mi (1,437.57 km) |
| Heidenheim to Haskovo | 879.58 mi (1,415.55 km) |
| Heidenheim to Ihtiman | 787.30 mi (1,267.03 km) |
| Heidenheim to Isperih | 865.83 mi (1,393.43 km) |
| Heidenheim to Kardzhali | 883.45 mi (1,421.78 km) |
