| Ardmore to Nuth | 4,933.65 mi (7,939.94 km) |
| Ardmore to Oegstgeest | 4,836.34 mi (7,783.34 km) |
| Ardmore to Oirschot | 4,891.07 mi (7,871.42 km) |
| Ardmore to Oisterwijk | 4,884.42 mi (7,860.71 km) |
| Ardmore to Oldebroek | 4,878.84 mi (7,851.74 km) |
| Ardmore to Oldenzaal | 4,920.76 mi (7,919.20 km) |
| Ardmore to Ommen | 4,894.98 mi (7,877.71 km) |
| Ardmore to Oosterend | 4,864.93 mi (7,829.34 km) |
| Ardmore to Oosterhout | 4,869.67 mi (7,836.98 km) |
| Ardmore to Oosterwolde | 4,873.40 mi (7,842.97 km) |
| Ardmore to Oostzaan | 4,842.72 mi (7,793.61 km) |
| Ardmore to Opmeer | 4,835.75 mi (7,782.39 km) |
| Ardmore to Oss | 4,889.47 mi (7,868.84 km) |
| Ardmore to Oud-Beijerland | 4,846.74 mi (7,800.07 km) |
| Ardmore to Oudenbosch | 4,859.30 mi (7,820.29 km) |
