| Hudiksvall to Popovo | 1,323.68 mi (2,130.26 km) |
| Hudiksvall to Provadia | 1,349.43 mi (2,171.69 km) |
| Hudiksvall to Radnevo | 1,391.12 mi (2,238.79 km) |
| Hudiksvall to Radomir | 1,347.03 mi (2,167.84 km) |
| Hudiksvall to Rakitovo | 1,394.72 mi (2,244.59 km) |
| Hudiksvall to Rakovski | 1,382.01 mi (2,224.13 km) |
| Hudiksvall to Razgrad | 1,314.68 mi (2,115.77 km) |
| Hudiksvall to Razlog | 1,396.50 mi (2,247.45 km) |
| Hudiksvall to Ruse | 1,288.67 mi (2,073.91 km) |
| Hudiksvall to Samokov | 1,366.22 mi (2,198.73 km) |
| Hudiksvall to Sandanski | 1,416.63 mi (2,279.84 km) |
| Hudiksvall to Sevlievo | 1,333.50 mi (2,146.07 km) |
| Hudiksvall to Shumen | 1,336.47 mi (2,150.85 km) |
| Hudiksvall to Silistra | 1,284.85 mi (2,067.77 km) |
| Hudiksvall to Sliven | 1,369.70 mi (2,204.31 km) |
