| Carol Stream to Nuth | 4,210.50 mi (6,776.14 km) |
| Carol Stream to Oegstgeest | 4,113.15 mi (6,619.47 km) |
| Carol Stream to Oirschot | 4,167.89 mi (6,707.57 km) |
| Carol Stream to Oisterwijk | 4,161.23 mi (6,696.85 km) |
| Carol Stream to Oldebroek | 4,155.73 mi (6,688.00 km) |
| Carol Stream to Oldenzaal | 4,197.70 mi (6,755.54 km) |
| Carol Stream to Ommen | 4,171.91 mi (6,714.05 km) |
| Carol Stream to Oosterend | 4,141.96 mi (6,665.84 km) |
| Carol Stream to Oosterhout | 4,146.49 mi (6,673.13 km) |
| Carol Stream to Oosterwolde | 4,150.45 mi (6,679.50 km) |
| Carol Stream to Oostzaan | 4,119.56 mi (6,629.79 km) |
| Carol Stream to Opmeer | 4,112.62 mi (6,618.62 km) |
| Carol Stream to Oss | 4,166.27 mi (6,704.97 km) |
| Carol Stream to Oud-Beijerland | 4,123.55 mi (6,636.21 km) |
| Carol Stream to Oudenbosch | 4,136.13 mi (6,656.45 km) |
