| Bardstown to Nuth | 4,306.88 mi (6,931.25 km) |
| Bardstown to Oegstgeest | 4,213.67 mi (6,781.25 km) |
| Bardstown to Oirschot | 4,266.26 mi (6,865.89 km) |
| Bardstown to Oisterwijk | 4,259.87 mi (6,855.59 km) |
| Bardstown to Oldebroek | 4,260.16 mi (6,856.06 km) |
| Bardstown to Oldenzaal | 4,303.26 mi (6,925.42 km) |
| Bardstown to Ommen | 4,277.60 mi (6,884.13 km) |
| Bardstown to Oosterend | 4,249.58 mi (6,839.03 km) |
| Bardstown to Oosterhout | 4,244.83 mi (6,831.39 km) |
| Bardstown to Oosterwolde | 4,258.38 mi (6,853.20 km) |
| Bardstown to Oostzaan | 4,222.13 mi (6,794.87 km) |
| Bardstown to Opmeer | 4,216.73 mi (6,786.17 km) |
| Bardstown to Oss | 4,266.44 mi (6,866.17 km) |
| Bardstown to Oud-Beijerland | 4,222.00 mi (6,794.66 km) |
| Bardstown to Oudenbosch | 4,233.59 mi (6,813.30 km) |
