| Mechelen to Provadia | 1,201.00 mi (1,932.82 km) |
| Mechelen to Radnevo | 1,176.11 mi (1,892.76 km) |
| Mechelen to Radomir | 1,047.32 mi (1,685.50 km) |
| Mechelen to Rakitovo | 1,116.81 mi (1,797.33 km) |
| Mechelen to Rakovski | 1,137.97 mi (1,831.39 km) |
| Mechelen to Razgrad | 1,149.37 mi (1,849.73 km) |
| Mechelen to Razlog | 1,097.50 mi (1,766.25 km) |
| Mechelen to Ruse | 1,114.85 mi (1,794.18 km) |
| Mechelen to Samokov | 1,080.37 mi (1,738.69 km) |
| Mechelen to Sandanski | 1,105.05 mi (1,778.41 km) |
| Mechelen to Sevlievo | 1,112.51 mi (1,790.42 km) |
| Mechelen to Shumen | 1,176.39 mi (1,893.22 km) |
| Mechelen to Silistra | 1,158.09 mi (1,863.76 km) |
| Mechelen to Sliven | 1,176.12 mi (1,892.79 km) |
| Mechelen to Smolyan | 1,158.92 mi (1,865.10 km) |
