| Montalegre to Nuth | 902.72 mi (1,452.79 km) |
| Montalegre to Oegstgeest | 917.22 mi (1,476.12 km) |
| Montalegre to Oirschot | 909.69 mi (1,464.00 km) |
| Montalegre to Oisterwijk | 910.40 mi (1,465.15 km) |
| Montalegre to Oldebroek | 973.06 mi (1,565.99 km) |
| Montalegre to Oldenzaal | 999.22 mi (1,608.09 km) |
| Montalegre to Ommen | 992.10 mi (1,596.64 km) |
| Montalegre to Oosterend | 1,004.69 mi (1,616.89 km) |
| Montalegre to Oosterhout | 902.51 mi (1,452.44 km) |
| Montalegre to Oosterwolde | 1,010.73 mi (1,626.62 km) |
| Montalegre to Oostzaan | 941.86 mi (1,515.78 km) |
| Montalegre to Opmeer | 957.13 mi (1,540.36 km) |
| Montalegre to Oss | 928.97 mi (1,495.03 km) |
| Montalegre to Oud-Beijerland | 897.03 mi (1,443.63 km) |
| Montalegre to Oudenbosch | 889.66 mi (1,431.77 km) |
