| Americus to Nuth | 4,540.90 mi (7,307.87 km) |
| Americus to Oegstgeest | 4,452.85 mi (7,166.16 km) |
| Americus to Oirschot | 4,502.73 mi (7,246.44 km) |
| Americus to Oisterwijk | 4,496.66 mi (7,236.67 km) |
| Americus to Oldebroek | 4,503.06 mi (7,246.98 km) |
| Americus to Oldenzaal | 4,547.00 mi (7,317.68 km) |
| Americus to Ommen | 4,521.67 mi (7,276.93 km) |
| Americus to Oosterend | 4,495.90 mi (7,235.46 km) |
| Americus to Oosterhout | 4,481.43 mi (7,212.16 km) |
| Americus to Oosterwolde | 4,504.97 mi (7,250.05 km) |
| Americus to Oostzaan | 4,463.40 mi (7,183.14 km) |
| Americus to Opmeer | 4,459.64 mi (7,177.10 km) |
| Americus to Oss | 4,504.80 mi (7,249.77 km) |
| Americus to Oud-Beijerland | 4,458.92 mi (7,175.94 km) |
| Americus to Oudenbosch | 4,469.35 mi (7,192.73 km) |
