| Cities | Distance |
|---|---|
| Opatija to Bistrita | 502.70 mi (809.02 km) |
| Opatija to Blaj | 466.84 mi (751.31 km) |
| Opatija to Bocsa | 359.70 mi (578.87 km) |
| Opatija to Boldesti-Scaeni | 571.14 mi (919.17 km) |
| Opatija to Bolintin Vale | 563.67 mi (907.15 km) |
| Opatija to Borsa | 517.90 mi (833.49 km) |
| Opatija to Botosani | 610.32 mi (982.22 km) |
| Opatija to Brad | 412.94 mi (664.56 km) |
| Opatija to Bragadiru | 575.21 mi (925.71 km) |
| Opatija to Braila | 662.96 mi (1,066.93 km) |
| Opatija to Brasov | 548.07 mi (882.04 km) |
| Opatija to Breaza | 552.22 mi (888.72 km) |
| Opatija to Bucharest | 580.68 mi (934.52 km) |
| Opatija to Buftea | 571.59 mi (919.88 km) |
| Opatija to Buhusi | 602.05 mi (968.90 km) |