| Waltham Cross to Nuth | 260.97 mi (419.99 km) |
| Waltham Cross to Oegstgeest | 194.71 mi (313.36 km) |
| Waltham Cross to Oirschot | 229.23 mi (368.90 km) |
| Waltham Cross to Oisterwijk | 224.48 mi (361.27 km) |
| Waltham Cross to Oldebroek | 257.39 mi (414.23 km) |
| Waltham Cross to Oldenzaal | 299.39 mi (481.83 km) |
| Waltham Cross to Ommen | 279.59 mi (449.96 km) |
| Waltham Cross to Oosterend | 272.98 mi (439.31 km) |
| Waltham Cross to Oosterhout | 209.55 mi (337.24 km) |
| Waltham Cross to Oosterwolde | 281.68 mi (453.32 km) |
| Waltham Cross to Oostzaan | 215.10 mi (346.16 km) |
| Waltham Cross to Opmeer | 222.33 mi (357.80 km) |
| Waltham Cross to Oss | 237.53 mi (382.26 km) |
| Waltham Cross to Oud-Beijerland | 189.81 mi (305.46 km) |
| Waltham Cross to Oudenbosch | 195.49 mi (314.62 km) |
