| Acireale to Oegstgeest | 1,131.76 mi (1,821.40 km) |
| Acireale to Oirschot | 1,072.98 mi (1,726.79 km) |
| Acireale to Oisterwijk | 1,080.12 mi (1,738.29 km) |
| Acireale to Oldebroek | 1,118.16 mi (1,799.51 km) |
| Acireale to Oldenzaal | 1,090.82 mi (1,755.50 km) |
| Acireale to Ommen | 1,112.59 mi (1,790.54 km) |
| Acireale to Oosterend | 1,149.25 mi (1,849.54 km) |
| Acireale to Oosterhout | 1,091.24 mi (1,756.18 km) |
| Acireale to Oosterwolde | 1,144.37 mi (1,841.68 km) |
| Acireale to Oostzaan | 1,137.64 mi (1,830.85 km) |
| Acireale to Opmeer | 1,152.27 mi (1,854.40 km) |
| Acireale to Oss | 1,084.31 mi (1,745.03 km) |
| Acireale to Oud-Beijerland | 1,111.74 mi (1,789.18 km) |
| Acireale to Oudenbosch | 1,095.62 mi (1,763.24 km) |
| Acireale to Oudewater | 1,113.14 mi (1,791.43 km) |
