| Bad Mergentheim to Smolyan | 903.60 mi (1,454.21 km) |
| Bad Mergentheim to Sofia | 799.92 mi (1,287.34 km) |
| Bad Mergentheim to Sopot | 857.69 mi (1,380.32 km) |
| Bad Mergentheim to Sozopol | 987.11 mi (1,588.59 km) |
| Bad Mergentheim to Sredets | 969.25 mi (1,559.85 km) |
| Bad Mergentheim to Stamboliyski | 871.99 mi (1,403.33 km) |
| Bad Mergentheim to Stara Zagora | 902.90 mi (1,453.07 km) |
| Bad Mergentheim to Svilengrad | 953.77 mi (1,534.94 km) |
| Bad Mergentheim to Svishtov | 842.31 mi (1,355.57 km) |
| Bad Mergentheim to Targovishte | 907.72 mi (1,460.83 km) |
| Bad Mergentheim to Teteven | 827.04 mi (1,330.99 km) |
| Bad Mergentheim to Troyan | 846.39 mi (1,362.13 km) |
| Bad Mergentheim to Tryavna | 878.60 mi (1,413.98 km) |
| Bad Mergentheim to Tutrakan | 879.20 mi (1,414.94 km) |
| Bad Mergentheim to Varna | 964.88 mi (1,552.83 km) |
