| Castelfiorentino to Popovo | 764.57 mi (1,230.46 km) |
| Castelfiorentino to Provadia | 825.91 mi (1,329.17 km) |
| Castelfiorentino to Radnevo | 761.16 mi (1,224.97 km) |
| Castelfiorentino to Radomir | 608.59 mi (979.43 km) |
| Castelfiorentino to Rakitovo | 673.62 mi (1,084.09 km) |
| Castelfiorentino to Rakovski | 712.93 mi (1,147.35 km) |
| Castelfiorentino to Razgrad | 777.36 mi (1,251.03 km) |
| Castelfiorentino to Razlog | 644.64 mi (1,037.44 km) |
| Castelfiorentino to Ruse | 747.63 mi (1,203.20 km) |
| Castelfiorentino to Samokov | 641.77 mi (1,032.83 km) |
| Castelfiorentino to Sandanski | 641.41 mi (1,032.25 km) |
| Castelfiorentino to Sevlievo | 711.45 mi (1,144.96 km) |
| Castelfiorentino to Shumen | 800.06 mi (1,287.57 km) |
| Castelfiorentino to Silistra | 811.22 mi (1,305.53 km) |
| Castelfiorentino to Sliven | 776.18 mi (1,249.13 km) |
