| Castalla to Bicaz | 1,465.03 mi (2,357.74 km) |
| Castalla to Bistrita | 1,396.36 mi (2,247.22 km) |
| Castalla to Blaj | 1,352.52 mi (2,176.67 km) |
| Castalla to Bocsa | 1,236.01 mi (1,989.17 km) |
| Castalla to Boldesti-Scaeni | 1,437.40 mi (2,313.27 km) |
| Castalla to Bolintin Vale | 1,418.56 mi (2,282.95 km) |
| Castalla to Borsa | 1,413.85 mi (2,275.36 km) |
| Castalla to Botosani | 1,505.35 mi (2,422.63 km) |
| Castalla to Brad | 1,299.63 mi (2,091.56 km) |
| Castalla to Bragadiru | 1,428.57 mi (2,299.06 km) |
| Castalla to Braila | 1,532.70 mi (2,466.65 km) |
| Castalla to Brasov | 1,424.97 mi (2,293.27 km) |
| Castalla to Breaza | 1,421.38 mi (2,287.49 km) |
| Castalla to Bucharest | 1,435.40 mi (2,310.06 km) |
| Castalla to Buftea | 1,429.07 mi (2,299.87 km) |
