| Brock Hall to Nuth | 3,912.93 mi (6,297.25 km) |
| Brock Hall to Oegstgeest | 3,824.19 mi (6,154.44 km) |
| Brock Hall to Oirschot | 3,874.41 mi (6,235.27 km) |
| Brock Hall to Oisterwijk | 3,868.30 mi (6,225.43 km) |
| Brock Hall to Oldebroek | 3,874.05 mi (6,234.69 km) |
| Brock Hall to Oldenzaal | 3,917.93 mi (6,305.30 km) |
| Brock Hall to Ommen | 3,892.57 mi (6,264.49 km) |
| Brock Hall to Oosterend | 3,866.63 mi (6,222.74 km) |
| Brock Hall to Oosterhout | 3,853.09 mi (6,200.94 km) |
| Brock Hall to Oosterwolde | 3,875.68 mi (6,237.30 km) |
| Brock Hall to Oostzaan | 3,834.53 mi (6,171.07 km) |
| Brock Hall to Opmeer | 3,830.62 mi (6,164.79 km) |
| Brock Hall to Oss | 3,876.25 mi (6,238.23 km) |
| Brock Hall to Oud-Beijerland | 3,830.53 mi (6,164.64 km) |
| Brock Hall to Oudenbosch | 3,841.11 mi (6,181.68 km) |
