| Boizenburg to Popovo | 989.20 mi (1,591.97 km) |
| Boizenburg to Provadia | 1,037.41 mi (1,669.55 km) |
| Boizenburg to Radnevo | 1,036.31 mi (1,667.78 km) |
| Boizenburg to Radomir | 934.77 mi (1,504.37 km) |
| Boizenburg to Rakitovo | 999.23 mi (1,608.11 km) |
| Boizenburg to Rakovski | 1,007.56 mi (1,621.51 km) |
| Boizenburg to Razgrad | 988.85 mi (1,591.41 km) |
| Boizenburg to Razlog | 987.83 mi (1,589.76 km) |
| Boizenburg to Ruse | 955.28 mi (1,537.38 km) |
| Boizenburg to Samokov | 963.93 mi (1,551.30 km) |
| Boizenburg to Sandanski | 1,001.35 mi (1,611.52 km) |
| Boizenburg to Sevlievo | 971.18 mi (1,562.96 km) |
| Boizenburg to Shumen | 1,015.61 mi (1,634.47 km) |
| Boizenburg to Silistra | 984.05 mi (1,583.68 km) |
| Boizenburg to Sliven | 1,027.98 mi (1,654.37 km) |
