| Simpelveld to Popovo | 1,078.83 mi (1,736.21 km) |
| Simpelveld to Provadia | 1,134.70 mi (1,826.12 km) |
| Simpelveld to Radnevo | 1,110.71 mi (1,787.52 km) |
| Simpelveld to Radomir | 983.20 mi (1,582.31 km) |
| Simpelveld to Rakitovo | 1,052.54 mi (1,693.89 km) |
| Simpelveld to Rakovski | 1,072.99 mi (1,726.82 km) |
| Simpelveld to Razgrad | 1,083.11 mi (1,743.10 km) |
| Simpelveld to Razlog | 1,033.69 mi (1,663.57 km) |
| Simpelveld to Ruse | 1,048.59 mi (1,687.55 km) |
| Simpelveld to Samokov | 1,016.09 mi (1,635.24 km) |
| Simpelveld to Sandanski | 1,041.69 mi (1,676.43 km) |
| Simpelveld to Sevlievo | 1,046.95 mi (1,684.91 km) |
| Simpelveld to Shumen | 1,110.16 mi (1,786.62 km) |
| Simpelveld to Silistra | 1,091.49 mi (1,756.59 km) |
| Simpelveld to Sliven | 1,110.35 mi (1,786.94 km) |
