| Rio de Mouro to Nuth | 1,118.14 mi (1,799.48 km) |
| Rio de Mouro to Oegstgeest | 1,138.65 mi (1,832.48 km) |
| Rio de Mouro to Oirschot | 1,128.09 mi (1,815.49 km) |
| Rio de Mouro to Oisterwijk | 1,129.22 mi (1,817.30 km) |
| Rio de Mouro to Oldebroek | 1,193.02 mi (1,919.99 km) |
| Rio de Mouro to Oldenzaal | 1,217.27 mi (1,959.01 km) |
| Rio de Mouro to Ommen | 1,211.47 mi (1,949.67 km) |
| Rio de Mouro to Oosterend | 1,225.67 mi (1,972.52 km) |
| Rio de Mouro to Oosterhout | 1,122.06 mi (1,805.78 km) |
| Rio de Mouro to Oosterwolde | 1,231.38 mi (1,981.72 km) |
| Rio de Mouro to Oostzaan | 1,163.24 mi (1,872.05 km) |
| Rio de Mouro to Opmeer | 1,178.95 mi (1,897.34 km) |
| Rio de Mouro to Oss | 1,147.76 mi (1,847.14 km) |
| Rio de Mouro to Oud-Beijerland | 1,117.74 mi (1,798.84 km) |
| Rio de Mouro to Oudenbosch | 1,109.62 mi (1,785.77 km) |
