| Clausthal-Zellerfeld to Devnya | 995.28 mi (1,601.76 km) |
| Clausthal-Zellerfeld to Dimitrovgrad | 982.78 mi (1,581.63 km) |
| Clausthal-Zellerfeld to Dobrich | 989.09 mi (1,591.79 km) |
| Clausthal-Zellerfeld to Dospat | 956.75 mi (1,539.74 km) |
| Clausthal-Zellerfeld to Dupnitsa | 890.10 mi (1,432.48 km) |
| Clausthal-Zellerfeld to Elhovo | 1,010.21 mi (1,625.77 km) |
| Clausthal-Zellerfeld to Etropole | 888.29 mi (1,429.56 km) |
| Clausthal-Zellerfeld to Gabrovo | 931.94 mi (1,499.81 km) |
| Clausthal-Zellerfeld to Gorna Oryahovitsa | 931.55 mi (1,499.19 km) |
| Clausthal-Zellerfeld to Gotse Delchev | 947.62 mi (1,525.05 km) |
| Clausthal-Zellerfeld to Harmanli | 999.03 mi (1,607.79 km) |
| Clausthal-Zellerfeld to Haskovo | 987.70 mi (1,589.56 km) |
| Clausthal-Zellerfeld to Ihtiman | 903.11 mi (1,453.41 km) |
| Clausthal-Zellerfeld to Isperih | 944.83 mi (1,520.56 km) |
| Clausthal-Zellerfeld to Kardzhali | 995.85 mi (1,602.67 km) |
