| Colonia to Nuth | 3,736.96 mi (6,014.05 km) |
| Colonia to Oegstgeest | 3,648.12 mi (5,871.09 km) |
| Colonia to Oirschot | 3,698.39 mi (5,951.98 km) |
| Colonia to Oisterwijk | 3,692.27 mi (5,942.13 km) |
| Colonia to Oldebroek | 3,697.96 mi (5,951.30 km) |
| Colonia to Oldenzaal | 3,741.84 mi (6,021.91 km) |
| Colonia to Ommen | 3,716.48 mi (5,981.10 km) |
| Colonia to Oosterend | 3,690.54 mi (5,939.35 km) |
| Colonia to Oosterhout | 3,677.06 mi (5,917.65 km) |
| Colonia to Oosterwolde | 3,699.59 mi (5,953.92 km) |
| Colonia to Oostzaan | 3,658.44 mi (5,887.70 km) |
| Colonia to Opmeer | 3,654.53 mi (5,881.40 km) |
| Colonia to Oss | 3,700.20 mi (5,954.90 km) |
| Colonia to Oud-Beijerland | 3,654.49 mi (5,881.34 km) |
| Colonia to Oudenbosch | 3,665.10 mi (5,898.41 km) |
