| Caldiran to Nuth | 1,999.45 mi (3,217.80 km) |
| Caldiran to Oegstgeest | 2,073.92 mi (3,337.65 km) |
| Caldiran to Oirschot | 2,030.88 mi (3,268.39 km) |
| Caldiran to Oisterwijk | 2,036.07 mi (3,276.74 km) |
| Caldiran to Oldebroek | 2,017.93 mi (3,247.55 km) |
| Caldiran to Oldenzaal | 1,973.39 mi (3,175.87 km) |
| Caldiran to Ommen | 1,997.64 mi (3,214.89 km) |
| Caldiran to Oosterend | 2,019.32 mi (3,249.78 km) |
| Caldiran to Oosterhout | 2,051.27 mi (3,301.21 km) |
| Caldiran to Oosterwolde | 2,010.00 mi (3,234.78 km) |
| Caldiran to Oostzaan | 2,059.70 mi (3,314.77 km) |
| Caldiran to Opmeer | 2,060.47 mi (3,316.00 km) |
| Caldiran to Oss | 2,024.89 mi (3,258.74 km) |
| Caldiran to Oud-Beijerland | 2,072.51 mi (3,335.38 km) |
| Caldiran to Oudenbosch | 2,064.79 mi (3,322.95 km) |
