| Birkerod to Popovo | 1,056.93 mi (1,700.96 km) |
| Birkerod to Provadia | 1,098.13 mi (1,767.27 km) |
| Birkerod to Radnevo | 1,112.72 mi (1,790.74 km) |
| Birkerod to Radomir | 1,030.72 mi (1,658.79 km) |
| Birkerod to Rakitovo | 1,090.11 mi (1,754.36 km) |
| Birkerod to Rakovski | 1,090.65 mi (1,755.24 km) |
| Birkerod to Razgrad | 1,053.37 mi (1,695.23 km) |
| Birkerod to Razlog | 1,083.50 mi (1,743.73 km) |
| Birkerod to Ruse | 1,021.68 mi (1,644.24 km) |
| Birkerod to Samokov | 1,056.66 mi (1,700.53 km) |
| Birkerod to Sandanski | 1,099.82 mi (1,769.99 km) |
| Birkerod to Sevlievo | 1,048.86 mi (1,687.97 km) |
| Birkerod to Shumen | 1,079.00 mi (1,736.49 km) |
| Birkerod to Silistra | 1,039.23 mi (1,672.48 km) |
| Birkerod to Sliven | 1,099.35 mi (1,769.23 km) |
