| Newark to Oerlinghausen | 3,807.32 mi (6,127.30 km) |
| Newark to Oestrich-Winkel | 3,836.01 mi (6,173.46 km) |
| Newark to Offenburg | 3,877.78 mi (6,240.69 km) |
| Newark to Oftersheim | 3,877.95 mi (6,240.96 km) |
| Newark to Ohrdruf | 3,921.00 mi (6,310.24 km) |
| Newark to Ohringen | 3,920.27 mi (6,309.06 km) |
| Newark to Olbernhau | 4,027.85 mi (6,482.19 km) |
| Newark to Olching | 4,025.25 mi (6,478.01 km) |
| Newark to Oldenburg | 3,758.02 mi (6,047.94 km) |
| Newark to Oldenburg in Holstein | 3,827.32 mi (6,159.48 km) |
| Newark to Olfen | 3,763.79 mi (6,057.23 km) |
| Newark to Olpe | 3,800.73 mi (6,116.69 km) |
| Newark to Olsberg | 3,817.24 mi (6,143.25 km) |
| Newark to Oranienburg | 3,959.74 mi (6,372.59 km) |
| Newark to Ortenberg | 3,868.25 mi (6,225.34 km) |
