| Castellamonte to Popovo | 923.43 mi (1,486.11 km) |
| Castellamonte to Provadia | 984.69 mi (1,584.71 km) |
| Castellamonte to Radnevo | 930.48 mi (1,497.47 km) |
| Castellamonte to Radomir | 781.31 mi (1,257.39 km) |
| Castellamonte to Rakitovo | 849.34 mi (1,366.88 km) |
| Castellamonte to Rakovski | 884.17 mi (1,422.93 km) |
| Castellamonte to Razgrad | 933.95 mi (1,503.04 km) |
| Castellamonte to Razlog | 822.54 mi (1,323.75 km) |
| Castellamonte to Ruse | 901.86 mi (1,451.40 km) |
| Castellamonte to Samokov | 815.35 mi (1,312.17 km) |
| Castellamonte to Sandanski | 822.37 mi (1,323.47 km) |
| Castellamonte to Sevlievo | 875.32 mi (1,408.68 km) |
| Castellamonte to Shumen | 958.59 mi (1,542.70 km) |
| Castellamonte to Silistra | 960.82 mi (1,546.29 km) |
| Castellamonte to Sliven | 941.34 mi (1,514.95 km) |
