| Mulheim-Karlich to Popovo | 1,005.87 mi (1,618.79 km) |
| Mulheim-Karlich to Provadia | 1,061.87 mi (1,708.91 km) |
| Mulheim-Karlich to Radnevo | 1,037.60 mi (1,669.85 km) |
| Mulheim-Karlich to Radomir | 910.34 mi (1,465.06 km) |
| Mulheim-Karlich to Rakitovo | 979.62 mi (1,576.55 km) |
| Mulheim-Karlich to Rakovski | 999.91 mi (1,609.20 km) |
| Mulheim-Karlich to Razgrad | 1,010.25 mi (1,625.84 km) |
| Mulheim-Karlich to Razlog | 960.95 mi (1,546.50 km) |
| Mulheim-Karlich to Ruse | 975.73 mi (1,570.29 km) |
| Mulheim-Karlich to Samokov | 943.17 mi (1,517.89 km) |
| Mulheim-Karlich to Sandanski | 969.13 mi (1,559.66 km) |
| Mulheim-Karlich to Sevlievo | 973.84 mi (1,567.25 km) |
| Mulheim-Karlich to Shumen | 1,037.28 mi (1,669.34 km) |
| Mulheim-Karlich to Silistra | 1,019.04 mi (1,639.99 km) |
| Mulheim-Karlich to Sliven | 1,037.27 mi (1,669.33 km) |
