| Boone to Nuth | 4,235.03 mi (6,815.62 km) |
| Boone to Oegstgeest | 4,145.39 mi (6,671.36 km) |
| Boone to Oirschot | 4,196.10 mi (6,752.97 km) |
| Boone to Oisterwijk | 4,189.93 mi (6,743.04 km) |
| Boone to Oldebroek | 4,194.59 mi (6,750.54 km) |
| Boone to Oldenzaal | 4,238.33 mi (6,820.93 km) |
| Boone to Ommen | 4,212.89 mi (6,779.99 km) |
| Boone to Oosterend | 4,186.48 mi (6,737.50 km) |
| Boone to Oosterhout | 4,174.74 mi (6,718.60 km) |
| Boone to Oosterwolde | 4,195.49 mi (6,751.99 km) |
| Boone to Oostzaan | 4,155.35 mi (6,687.39 km) |
| Boone to Opmeer | 4,151.13 mi (6,680.60 km) |
| Boone to Oss | 4,197.62 mi (6,755.42 km) |
| Boone to Oud-Beijerland | 4,152.12 mi (6,682.19 km) |
| Boone to Oudenbosch | 4,162.90 mi (6,699.54 km) |
