| Boskoop to Popovo | 1,163.69 mi (1,872.78 km) |
| Boskoop to Provadia | 1,218.14 mi (1,960.41 km) |
| Boskoop to Radnevo | 1,198.84 mi (1,929.34 km) |
| Boskoop to Radomir | 1,075.34 mi (1,730.59 km) |
| Boskoop to Rakitovo | 1,144.20 mi (1,841.42 km) |
| Boskoop to Rakovski | 1,162.63 mi (1,871.07 km) |
| Boskoop to Razgrad | 1,166.98 mi (1,878.08 km) |
| Boskoop to Razlog | 1,126.49 mi (1,812.91 km) |
| Boskoop to Ruse | 1,132.49 mi (1,822.56 km) |
| Boskoop to Samokov | 1,107.77 mi (1,782.79 km) |
| Boskoop to Sandanski | 1,135.38 mi (1,827.21 km) |
| Boskoop to Sevlievo | 1,134.49 mi (1,825.79 km) |
| Boskoop to Shumen | 1,194.10 mi (1,921.71 km) |
| Boskoop to Silistra | 1,172.36 mi (1,886.73 km) |
| Boskoop to Sliven | 1,196.88 mi (1,926.20 km) |
