| Hoorn to Popovo | 1,163.87 mi (1,873.07 km) |
| Hoorn to Provadia | 1,217.22 mi (1,958.92 km) |
| Hoorn to Radnevo | 1,201.46 mi (1,933.56 km) |
| Hoorn to Radomir | 1,081.58 mi (1,740.64 km) |
| Hoorn to Rakitovo | 1,149.91 mi (1,850.61 km) |
| Hoorn to Rakovski | 1,166.55 mi (1,877.38 km) |
| Hoorn to Razgrad | 1,166.45 mi (1,877.22 km) |
| Hoorn to Razlog | 1,133.26 mi (1,823.81 km) |
| Hoorn to Ruse | 1,132.04 mi (1,821.84 km) |
| Hoorn to Samokov | 1,113.56 mi (1,792.10 km) |
| Hoorn to Sandanski | 1,143.00 mi (1,839.48 km) |
| Hoorn to Sevlievo | 1,136.77 mi (1,829.45 km) |
| Hoorn to Shumen | 1,193.57 mi (1,920.86 km) |
| Hoorn to Silistra | 1,169.74 mi (1,882.52 km) |
| Hoorn to Sliven | 1,198.27 mi (1,928.43 km) |
