| Phillipsburg to Oerlinghausen | 3,848.26 mi (6,193.17 km) |
| Phillipsburg to Oestrich-Winkel | 3,878.31 mi (6,241.53 km) |
| Phillipsburg to Offenburg | 3,921.00 mi (6,310.24 km) |
| Phillipsburg to Oftersheim | 3,920.52 mi (6,309.47 km) |
| Phillipsburg to Ohrdruf | 3,962.28 mi (6,376.67 km) |
| Phillipsburg to Ohringen | 3,962.77 mi (6,377.46 km) |
| Phillipsburg to Olbernhau | 4,068.72 mi (6,547.97 km) |
| Phillipsburg to Olching | 4,067.98 mi (6,546.77 km) |
| Phillipsburg to Oldenburg | 3,798.25 mi (6,112.69 km) |
| Phillipsburg to Oldenburg in Holstein | 3,866.30 mi (6,222.20 km) |
| Phillipsburg to Olfen | 3,805.11 mi (6,123.73 km) |
| Phillipsburg to Olpe | 3,842.43 mi (6,183.79 km) |
| Phillipsburg to Olsberg | 3,858.60 mi (6,209.82 km) |
| Phillipsburg to Oranienburg | 3,999.32 mi (6,436.28 km) |
| Phillipsburg to Ortenberg | 3,910.13 mi (6,292.75 km) |
