| Bad Frankenhausen to Popovo | 895.78 mi (1,441.61 km) |
| Bad Frankenhausen to Provadia | 947.90 mi (1,525.50 km) |
| Bad Frankenhausen to Radnevo | 936.56 mi (1,507.25 km) |
| Bad Frankenhausen to Radomir | 824.10 mi (1,326.26 km) |
| Bad Frankenhausen to Rakitovo | 890.87 mi (1,433.72 km) |
| Bad Frankenhausen to Rakovski | 903.93 mi (1,454.73 km) |
| Bad Frankenhausen to Razgrad | 897.57 mi (1,444.50 km) |
| Bad Frankenhausen to Razlog | 876.69 mi (1,410.89 km) |
| Bad Frankenhausen to Ruse | 863.30 mi (1,389.34 km) |
| Bad Frankenhausen to Samokov | 854.87 mi (1,375.78 km) |
| Bad Frankenhausen to Sandanski | 888.39 mi (1,429.73 km) |
| Bad Frankenhausen to Sevlievo | 871.51 mi (1,402.56 km) |
| Bad Frankenhausen to Shumen | 924.66 mi (1,488.09 km) |
| Bad Frankenhausen to Silistra | 899.15 mi (1,447.04 km) |
| Bad Frankenhausen to Sliven | 931.59 mi (1,499.25 km) |
