| Roman to Nuth | 990.55 mi (1,594.13 km) |
| Roman to Oegstgeest | 1,065.01 mi (1,713.97 km) |
| Roman to Oirschot | 1,021.61 mi (1,644.12 km) |
| Roman to Oisterwijk | 1,026.80 mi (1,652.48 km) |
| Roman to Oldebroek | 1,009.83 mi (1,625.16 km) |
| Roman to Oldenzaal | 965.32 mi (1,553.54 km) |
| Roman to Ommen | 989.89 mi (1,593.08 km) |
| Roman to Oosterend | 1,012.95 mi (1,630.19 km) |
| Roman to Oosterhout | 1,042.01 mi (1,676.95 km) |
| Roman to Oosterwolde | 1,003.71 mi (1,615.32 km) |
| Roman to Oostzaan | 1,051.27 mi (1,691.86 km) |
| Roman to Opmeer | 1,052.66 mi (1,694.10 km) |
| Roman to Oss | 1,015.70 mi (1,634.60 km) |
| Roman to Oud-Beijerland | 1,063.28 mi (1,711.18 km) |
| Roman to Oudenbosch | 1,055.51 mi (1,698.69 km) |
