| Kalamaria to Oegstgeest | 1,184.70 mi (1,906.58 km) |
| Kalamaria to Oirschot | 1,128.43 mi (1,816.04 km) |
| Kalamaria to Oisterwijk | 1,135.26 mi (1,827.02 km) |
| Kalamaria to Oldebroek | 1,147.46 mi (1,846.66 km) |
| Kalamaria to Oldenzaal | 1,108.06 mi (1,783.25 km) |
| Kalamaria to Ommen | 1,133.60 mi (1,824.35 km) |
| Kalamaria to Oosterend | 1,166.54 mi (1,877.36 km) |
| Kalamaria to Oosterhout | 1,149.70 mi (1,850.27 km) |
| Kalamaria to Oosterwolde | 1,158.85 mi (1,865.00 km) |
| Kalamaria to Oostzaan | 1,180.60 mi (1,900.00 km) |
| Kalamaria to Opmeer | 1,189.49 mi (1,914.30 km) |
| Kalamaria to Oss | 1,131.61 mi (1,821.15 km) |
| Kalamaria to Oud-Beijerland | 1,172.61 mi (1,887.14 km) |
| Kalamaria to Oudenbosch | 1,159.43 mi (1,865.93 km) |
| Kalamaria to Oudewater | 1,164.19 mi (1,873.58 km) |
