| Bad Mergentheim to Popovo | 889.28 mi (1,431.16 km) |
| Bad Mergentheim to Provadia | 945.81 mi (1,522.13 km) |
| Bad Mergentheim to Radnevo | 919.96 mi (1,480.53 km) |
| Bad Mergentheim to Radomir | 792.22 mi (1,274.95 km) |
| Bad Mergentheim to Rakitovo | 861.50 mi (1,386.45 km) |
| Bad Mergentheim to Rakovski | 881.98 mi (1,419.40 km) |
| Bad Mergentheim to Razgrad | 894.06 mi (1,438.85 km) |
| Bad Mergentheim to Razlog | 842.85 mi (1,356.44 km) |
| Bad Mergentheim to Ruse | 859.56 mi (1,383.34 km) |
| Bad Mergentheim to Samokov | 825.05 mi (1,327.79 km) |
| Bad Mergentheim to Sandanski | 851.13 mi (1,369.76 km) |
| Bad Mergentheim to Sevlievo | 856.38 mi (1,378.20 km) |
| Bad Mergentheim to Shumen | 921.03 mi (1,482.25 km) |
| Bad Mergentheim to Silistra | 904.25 mi (1,455.26 km) |
| Bad Mergentheim to Sliven | 920.08 mi (1,480.72 km) |
