| Bielefeld to Popovo | 1,013.76 mi (1,631.49 km) |
| Bielefeld to Provadia | 1,066.37 mi (1,716.16 km) |
| Bielefeld to Radnevo | 1,053.22 mi (1,695.00 km) |
| Bielefeld to Radomir | 937.39 mi (1,508.58 km) |
| Bielefeld to Rakitovo | 1,004.93 mi (1,617.28 km) |
| Bielefeld to Rakovski | 1,019.58 mi (1,640.86 km) |
| Bielefeld to Razgrad | 1,015.86 mi (1,634.87 km) |
| Bielefeld to Razlog | 989.62 mi (1,592.64 km) |
| Bielefeld to Ruse | 981.53 mi (1,579.62 km) |
| Bielefeld to Samokov | 968.74 mi (1,559.03 km) |
| Bielefeld to Sandanski | 1,000.44 mi (1,610.05 km) |
| Bielefeld to Sevlievo | 988.30 mi (1,590.51 km) |
| Bielefeld to Shumen | 1,042.97 mi (1,678.49 km) |
| Bielefeld to Silistra | 1,018.06 mi (1,638.41 km) |
| Bielefeld to Sliven | 1,049.00 mi (1,688.20 km) |
