| Barrow in Furness to Nuth | 441.58 mi (710.65 km) |
| Barrow in Furness to Oegstgeest | 345.26 mi (555.64 km) |
| Barrow in Furness to Oirschot | 398.85 mi (641.88 km) |
| Barrow in Furness to Oisterwijk | 392.25 mi (631.26 km) |
| Barrow in Furness to Oldebroek | 393.76 mi (633.69 km) |
| Barrow in Furness to Oldenzaal | 437.80 mi (704.57 km) |
| Barrow in Furness to Ommen | 412.63 mi (664.06 km) |
| Barrow in Furness to Oosterend | 388.68 mi (625.53 km) |
| Barrow in Furness to Oosterhout | 377.43 mi (607.41 km) |
| Barrow in Furness to Oosterwolde | 397.96 mi (640.45 km) |
| Barrow in Furness to Oostzaan | 354.31 mi (570.21 km) |
| Barrow in Furness to Opmeer | 350.37 mi (563.86 km) |
| Barrow in Furness to Oss | 398.10 mi (640.69 km) |
| Barrow in Furness to Oud-Beijerland | 354.50 mi (570.51 km) |
| Barrow in Furness to Oudenbosch | 367.04 mi (590.70 km) |
