| Gig Harbor to Opwijk | 4,947.09 mi (7,961.57 km) |
| Gig Harbor to Ostend | 4,900.79 mi (7,887.05 km) |
| Gig Harbor to Oud-Heverlee | 4,966.66 mi (7,993.07 km) |
| Gig Harbor to Oud-Turnhout | 4,946.94 mi (7,961.32 km) |
| Gig Harbor to Oudenaarde | 4,939.09 mi (7,948.70 km) |
| Gig Harbor to Oudenburg | 4,905.21 mi (7,894.17 km) |
| Gig Harbor to Oupeye | 4,997.82 mi (8,043.22 km) |
| Gig Harbor to Overijse | 4,966.20 mi (7,992.32 km) |
| Gig Harbor to Overpelt | 4,963.21 mi (7,987.51 km) |
| Gig Harbor to Paal | 4,967.39 mi (7,994.25 km) |
| Gig Harbor to Peer | 4,968.90 mi (7,996.68 km) |
| Gig Harbor to Pepinster | 5,010.19 mi (8,063.12 km) |
| Gig Harbor to Peruwelz | 4,957.49 mi (7,978.30 km) |
| Gig Harbor to Perwez | 4,982.25 mi (8,018.15 km) |
| Gig Harbor to Philippeville | 4,999.79 mi (8,046.39 km) |
