| Grangemouth to Nuth | 528.18 mi (850.03 km) |
| Grangemouth to Oegstgeest | 423.70 mi (681.89 km) |
| Grangemouth to Oirschot | 481.89 mi (775.53 km) |
| Grangemouth to Oisterwijk | 474.81 mi (764.13 km) |
| Grangemouth to Oldebroek | 459.19 mi (739.00 km) |
| Grangemouth to Oldenzaal | 500.01 mi (804.69 km) |
| Grangemouth to Ommen | 474.25 mi (763.23 km) |
| Grangemouth to Oosterend | 443.55 mi (713.83 km) |
| Grangemouth to Oosterhout | 461.34 mi (742.45 km) |
| Grangemouth to Oosterwolde | 452.00 mi (727.42 km) |
| Grangemouth to Oostzaan | 425.93 mi (685.46 km) |
| Grangemouth to Opmeer | 416.84 mi (670.85 km) |
| Grangemouth to Oss | 476.22 mi (766.39 km) |
| Grangemouth to Oud-Beijerland | 438.97 mi (706.45 km) |
| Grangemouth to Oudenbosch | 453.84 mi (730.38 km) |
