| Ridgefield Park to Oerlinghausen | 3,795.40 mi (6,108.11 km) |
| Ridgefield Park to Oestrich-Winkel | 3,824.16 mi (6,154.39 km) |
| Ridgefield Park to Offenburg | 3,865.99 mi (6,221.71 km) |
| Ridgefield Park to Oftersheim | 3,866.12 mi (6,221.91 km) |
| Ridgefield Park to Ohrdruf | 3,909.09 mi (6,291.08 km) |
| Ridgefield Park to Ohringen | 3,908.43 mi (6,290.01 km) |
| Ridgefield Park to Olbernhau | 4,015.92 mi (6,463.01 km) |
| Ridgefield Park to Olching | 4,013.42 mi (6,458.98 km) |
| Ridgefield Park to Oldenburg | 3,746.07 mi (6,028.72 km) |
| Ridgefield Park to Oldenburg in Holstein | 3,815.35 mi (6,140.20 km) |
| Ridgefield Park to Olfen | 3,751.89 mi (6,038.08 km) |
| Ridgefield Park to Olpe | 3,788.85 mi (6,097.56 km) |
| Ridgefield Park to Olsberg | 3,805.34 mi (6,124.10 km) |
| Ridgefield Park to Oranienburg | 3,947.78 mi (6,353.34 km) |
| Ridgefield Park to Ortenberg | 3,856.37 mi (6,206.23 km) |
