| Sasso Marconi to Oegstgeest | 621.02 mi (999.43 km) |
| Sasso Marconi to Oirschot | 562.12 mi (904.64 km) |
| Sasso Marconi to Oisterwijk | 569.27 mi (916.15 km) |
| Sasso Marconi to Oldebroek | 607.48 mi (977.64 km) |
| Sasso Marconi to Oldenzaal | 581.52 mi (935.86 km) |
| Sasso Marconi to Ommen | 602.61 mi (969.81 km) |
| Sasso Marconi to Oosterend | 639.30 mi (1,028.86 km) |
| Sasso Marconi to Oosterhout | 580.64 mi (934.45 km) |
| Sasso Marconi to Oosterwolde | 634.77 mi (1,021.57 km) |
| Sasso Marconi to Oostzaan | 626.58 mi (1,008.38 km) |
| Sasso Marconi to Opmeer | 641.21 mi (1,031.93 km) |
| Sasso Marconi to Oss | 573.25 mi (922.55 km) |
| Sasso Marconi to Oud-Beijerland | 601.45 mi (967.95 km) |
| Sasso Marconi to Oudenbosch | 585.49 mi (942.25 km) |
| Sasso Marconi to Oudewater | 602.24 mi (969.20 km) |
