| Kocaeli to Nuth | 1,343.81 mi (2,162.65 km) |
| Kocaeli to Oegstgeest | 1,433.73 mi (2,307.37 km) |
| Kocaeli to Oirschot | 1,382.53 mi (2,224.97 km) |
| Kocaeli to Oisterwijk | 1,388.72 mi (2,234.93 km) |
| Kocaeli to Oldebroek | 1,386.39 mi (2,231.18 km) |
| Kocaeli to Oldenzaal | 1,343.32 mi (2,161.86 km) |
| Kocaeli to Ommen | 1,368.99 mi (2,203.18 km) |
| Kocaeli to Oosterend | 1,397.45 mi (2,248.97 km) |
| Kocaeli to Oosterhout | 1,403.90 mi (2,259.35 km) |
| Kocaeli to Oosterwolde | 1,388.74 mi (2,234.96 km) |
| Kocaeli to Oostzaan | 1,424.63 mi (2,292.72 km) |
| Kocaeli to Opmeer | 1,429.83 mi (2,301.09 km) |
| Kocaeli to Oss | 1,381.27 mi (2,222.94 km) |
| Kocaeli to Oud-Beijerland | 1,426.54 mi (2,295.80 km) |
| Kocaeli to Oudenbosch | 1,415.72 mi (2,278.38 km) |
