| Cazzago San Martino to Oegstgeest | 521.03 mi (838.52 km) |
| Cazzago San Martino to Oirschot | 462.31 mi (744.02 km) |
| Cazzago San Martino to Oisterwijk | 469.44 mi (755.49 km) |
| Cazzago San Martino to Oldebroek | 509.84 mi (820.51 km) |
| Cazzago San Martino to Oldenzaal | 485.92 mi (782.02 km) |
| Cazzago San Martino to Ommen | 506.10 mi (814.49 km) |
| Cazzago San Martino to Oosterend | 542.74 mi (873.46 km) |
| Cazzago San Martino to Oosterhout | 480.49 mi (773.28 km) |
| Cazzago San Martino to Oosterwolde | 538.65 mi (866.88 km) |
| Cazzago San Martino to Oostzaan | 527.34 mi (848.67 km) |
| Cazzago San Martino to Opmeer | 542.38 mi (872.87 km) |
| Cazzago San Martino to Oss | 474.06 mi (762.92 km) |
| Cazzago San Martino to Oud-Beijerland | 501.06 mi (806.37 km) |
| Cazzago San Martino to Oudenbosch | 484.99 mi (780.52 km) |
| Cazzago San Martino to Oudewater | 502.50 mi (808.70 km) |
