| Quarteira to Nuth | 1,178.41 mi (1,896.47 km) |
| Quarteira to Oegstgeest | 1,209.60 mi (1,946.66 km) |
| Quarteira to Oirschot | 1,193.19 mi (1,920.26 km) |
| Quarteira to Oisterwijk | 1,195.04 mi (1,923.24 km) |
| Quarteira to Oldebroek | 1,260.53 mi (2,028.63 km) |
| Quarteira to Oldenzaal | 1,281.04 mi (2,061.64 km) |
| Quarteira to Ommen | 1,277.70 mi (2,056.25 km) |
| Quarteira to Oosterend | 1,295.04 mi (2,084.16 km) |
| Quarteira to Oosterhout | 1,189.32 mi (1,914.02 km) |
| Quarteira to Oosterwolde | 1,300.03 mi (2,092.20 km) |
| Quarteira to Oostzaan | 1,233.88 mi (1,985.74 km) |
| Quarteira to Opmeer | 1,250.49 mi (2,012.47 km) |
| Quarteira to Oss | 1,213.40 mi (1,952.78 km) |
| Quarteira to Oud-Beijerland | 1,187.33 mi (1,910.82 km) |
| Quarteira to Oudenbosch | 1,177.77 mi (1,895.43 km) |
