| Grevenbroich to Devnya | 1,120.17 mi (1,802.74 km) |
| Grevenbroich to Dimitrovgrad | 1,092.82 mi (1,758.72 km) |
| Grevenbroich to Dobrich | 1,116.91 mi (1,797.49 km) |
| Grevenbroich to Dospat | 1,057.32 mi (1,701.59 km) |
| Grevenbroich to Dupnitsa | 989.05 mi (1,591.72 km) |
| Grevenbroich to Elhovo | 1,125.13 mi (1,810.72 km) |
| Grevenbroich to Etropole | 995.78 mi (1,602.55 km) |
| Grevenbroich to Gabrovo | 1,045.91 mi (1,683.23 km) |
| Grevenbroich to Gorna Oryahovitsa | 1,048.81 mi (1,687.89 km) |
| Grevenbroich to Gotse Delchev | 1,045.36 mi (1,682.34 km) |
| Grevenbroich to Harmanli | 1,109.71 mi (1,785.91 km) |
| Grevenbroich to Haskovo | 1,096.88 mi (1,765.26 km) |
| Grevenbroich to Ihtiman | 1,006.98 mi (1,620.58 km) |
| Grevenbroich to Isperih | 1,070.12 mi (1,722.19 km) |
| Grevenbroich to Kardzhali | 1,102.39 mi (1,774.12 km) |
