| Erkelenz to Devnya | 1,131.05 mi (1,820.25 km) |
| Erkelenz to Dimitrovgrad | 1,103.12 mi (1,775.29 km) |
| Erkelenz to Dobrich | 1,127.89 mi (1,815.16 km) |
| Erkelenz to Dospat | 1,067.22 mi (1,717.53 km) |
| Erkelenz to Dupnitsa | 998.91 mi (1,607.59 km) |
| Erkelenz to Elhovo | 1,135.62 mi (1,827.60 km) |
| Erkelenz to Etropole | 1,006.00 mi (1,619.01 km) |
| Erkelenz to Gabrovo | 1,056.39 mi (1,700.09 km) |
| Erkelenz to Gorna Oryahovitsa | 1,059.41 mi (1,704.96 km) |
| Erkelenz to Gotse Delchev | 1,055.14 mi (1,698.08 km) |
| Erkelenz to Harmanli | 1,120.03 mi (1,802.51 km) |
| Erkelenz to Haskovo | 1,107.14 mi (1,781.77 km) |
| Erkelenz to Ihtiman | 1,017.05 mi (1,636.78 km) |
| Erkelenz to Isperih | 1,081.02 mi (1,739.74 km) |
| Erkelenz to Kardzhali | 1,112.53 mi (1,790.44 km) |
