| Mulheim to Popovo | 1,058.51 mi (1,703.50 km) |
| Mulheim to Provadia | 1,113.06 mi (1,791.29 km) |
| Mulheim to Radnevo | 1,093.68 mi (1,760.11 km) |
| Mulheim to Radomir | 970.87 mi (1,562.47 km) |
| Mulheim to Rakitovo | 1,039.60 mi (1,673.07 km) |
| Mulheim to Rakovski | 1,057.63 mi (1,702.10 km) |
| Mulheim to Razgrad | 1,061.86 mi (1,708.90 km) |
| Mulheim to Razlog | 1,022.20 mi (1,645.08 km) |
| Mulheim to Ruse | 1,027.36 mi (1,653.38 km) |
| Mulheim to Samokov | 1,003.18 mi (1,614.46 km) |
| Mulheim to Sandanski | 1,031.40 mi (1,659.88 km) |
| Mulheim to Sevlievo | 1,029.31 mi (1,656.52 km) |
| Mulheim to Shumen | 1,088.97 mi (1,752.53 km) |
| Mulheim to Silistra | 1,067.58 mi (1,718.11 km) |
| Mulheim to Sliven | 1,091.67 mi (1,756.88 km) |
