| Hilden to Popovo | 1,049.11 mi (1,688.37 km) |
| Hilden to Provadia | 1,104.06 mi (1,776.81 km) |
| Hilden to Radnevo | 1,083.36 mi (1,743.50 km) |
| Hilden to Radomir | 959.29 mi (1,543.82 km) |
| Hilden to Rakitovo | 1,028.18 mi (1,654.70 km) |
| Hilden to Rakovski | 1,046.85 mi (1,684.75 km) |
| Hilden to Razgrad | 1,052.73 mi (1,694.21 km) |
| Hilden to Razlog | 1,010.43 mi (1,626.12 km) |
| Hilden to Ruse | 1,018.22 mi (1,638.66 km) |
| Hilden to Samokov | 991.75 mi (1,596.07 km) |
| Hilden to Sandanski | 1,019.33 mi (1,640.46 km) |
| Hilden to Sevlievo | 1,019.14 mi (1,640.15 km) |
| Hilden to Shumen | 1,079.83 mi (1,737.82 km) |
| Hilden to Silistra | 1,059.27 mi (1,704.73 km) |
| Hilden to Sliven | 1,081.81 mi (1,741.00 km) |
