| Chapel Hill to Nuth | 4,142.67 mi (6,666.98 km) |
| Chapel Hill to Oegstgeest | 4,055.04 mi (6,525.96 km) |
| Chapel Hill to Oirschot | 4,104.69 mi (6,605.85 km) |
| Chapel Hill to Oisterwijk | 4,098.64 mi (6,596.13 km) |
| Chapel Hill to Oldebroek | 4,105.59 mi (6,607.30 km) |
| Chapel Hill to Oldenzaal | 4,149.59 mi (6,678.12 km) |
| Chapel Hill to Ommen | 4,124.31 mi (6,637.44 km) |
| Chapel Hill to Oosterend | 4,098.80 mi (6,596.39 km) |
| Chapel Hill to Oosterhout | 4,083.40 mi (6,571.60 km) |
| Chapel Hill to Oosterwolde | 4,107.89 mi (6,611.02 km) |
| Chapel Hill to Oostzaan | 4,065.78 mi (6,543.24 km) |
| Chapel Hill to Opmeer | 4,062.19 mi (6,537.46 km) |
| Chapel Hill to Oss | 4,106.90 mi (6,609.42 km) |
| Chapel Hill to Oud-Beijerland | 4,060.93 mi (6,535.43 km) |
| Chapel Hill to Oudenbosch | 4,071.27 mi (6,552.08 km) |
