| Riegelsberg to Popovo | 1,004.46 mi (1,616.52 km) |
| Riegelsberg to Provadia | 1,062.26 mi (1,709.54 km) |
| Riegelsberg to Radnevo | 1,030.82 mi (1,658.94 km) |
| Riegelsberg to Radomir | 896.99 mi (1,443.56 km) |
| Riegelsberg to Rakitovo | 966.82 mi (1,555.95 km) |
| Riegelsberg to Rakovski | 990.72 mi (1,594.42 km) |
| Riegelsberg to Razgrad | 1,010.30 mi (1,625.92 km) |
| Riegelsberg to Razlog | 946.04 mi (1,522.50 km) |
| Riegelsberg to Ruse | 975.95 mi (1,570.64 km) |
| Riegelsberg to Samokov | 930.52 mi (1,497.52 km) |
| Riegelsberg to Sandanski | 952.36 mi (1,532.67 km) |
| Riegelsberg to Sevlievo | 968.35 mi (1,558.41 km) |
| Riegelsberg to Shumen | 1,037.07 mi (1,669.00 km) |
| Riegelsberg to Silistra | 1,023.34 mi (1,646.91 km) |
| Riegelsberg to Sliven | 1,033.08 mi (1,662.59 km) |
