| Welzheim to Devnya | 941.65 mi (1,515.44 km) |
| Welzheim to Dimitrovgrad | 903.38 mi (1,453.84 km) |
| Welzheim to Dobrich | 941.14 mi (1,514.62 km) |
| Welzheim to Dospat | 862.91 mi (1,388.72 km) |
| Welzheim to Dupnitsa | 794.34 mi (1,278.37 km) |
| Welzheim to Elhovo | 938.65 mi (1,510.61 km) |
| Welzheim to Etropole | 805.61 mi (1,296.50 km) |
| Welzheim to Gabrovo | 859.47 mi (1,383.18 km) |
| Welzheim to Gorna Oryahovitsa | 864.72 mi (1,391.63 km) |
| Welzheim to Gotse Delchev | 849.70 mi (1,367.46 km) |
| Welzheim to Harmanli | 920.54 mi (1,481.46 km) |
| Welzheim to Haskovo | 906.88 mi (1,459.48 km) |
| Welzheim to Ihtiman | 814.64 mi (1,311.04 km) |
| Welzheim to Isperih | 892.49 mi (1,436.33 km) |
| Welzheim to Kardzhali | 910.79 mi (1,465.78 km) |
