| Cities | Distance |
|---|---|
| Kocaeli to Bicaz | 465.50 mi (749.15 km) |
| Kocaeli to Bistrita | 515.83 mi (830.14 km) |
| Kocaeli to Blaj | 479.78 mi (772.14 km) |
| Kocaeli to Bocsa | 522.19 mi (840.38 km) |
| Kocaeli to Boldesti-Scaeni | 354.38 mi (570.33 km) |
| Kocaeli to Bolintin Vale | 330.93 mi (532.58 km) |
| Kocaeli to Borsa | 542.40 mi (872.90 km) |
| Kocaeli to Botosani | 508.63 mi (818.56 km) |
| Kocaeli to Brad | 514.70 mi (828.33 km) |
| Kocaeli to Bragadiru | 319.92 mi (514.86 km) |
| Kocaeli to Braila | 326.72 mi (525.80 km) |
| Kocaeli to Brasov | 402.00 mi (646.96 km) |
| Kocaeli to Breaza | 373.69 mi (601.40 km) |
| Kocaeli to Bucharest | 319.17 mi (513.65 km) |
| Kocaeli to Buftea | 331.33 mi (533.22 km) |