| Highland to Nuth | 5,619.72 mi (9,044.07 km) |
| Highland to Oegstgeest | 5,514.87 mi (8,875.32 km) |
| Highland to Oirschot | 5,573.34 mi (8,969.43 km) |
| Highland to Oisterwijk | 5,566.24 mi (8,957.99 km) |
| Highland to Oldebroek | 5,544.88 mi (8,923.63 km) |
| Highland to Oldenzaal | 5,581.94 mi (8,983.27 km) |
| Highland to Ommen | 5,556.86 mi (8,942.90 km) |
| Highland to Oosterend | 5,522.61 mi (8,887.78 km) |
| Highland to Oosterhout | 5,552.87 mi (8,936.48 km) |
| Highland to Oosterwolde | 5,529.83 mi (8,899.41 km) |
| Highland to Oostzaan | 5,515.36 mi (8,876.11 km) |
| Highland to Opmeer | 5,504.43 mi (8,858.53 km) |
| Highland to Oss | 5,566.88 mi (8,959.04 km) |
| Highland to Oud-Beijerland | 5,530.51 mi (8,900.50 km) |
| Highland to Oudenbosch | 5,545.29 mi (8,924.28 km) |
