| Napa to Opwijk | 5,471.61 mi (8,805.71 km) |
| Napa to Ostend | 5,422.42 mi (8,726.55 km) |
| Napa to Oud-Heverlee | 5,492.18 mi (8,838.80 km) |
| Napa to Oud-Turnhout | 5,475.17 mi (8,811.43 km) |
| Napa to Oudenaarde | 5,461.38 mi (8,789.25 km) |
| Napa to Oudenburg | 5,426.93 mi (8,733.80 km) |
| Napa to Oupeye | 5,525.87 mi (8,893.03 km) |
| Napa to Overijse | 5,491.12 mi (8,837.10 km) |
| Napa to Overpelt | 5,492.39 mi (8,839.14 km) |
| Napa to Paal | 5,495.20 mi (8,843.67 km) |
| Napa to Peer | 5,497.89 mi (8,848.00 km) |
| Napa to Pepinster | 5,538.26 mi (8,912.97 km) |
| Napa to Peruwelz | 5,478.46 mi (8,816.73 km) |
| Napa to Perwez | 5,507.45 mi (8,863.38 km) |
| Napa to Philippeville | 5,522.61 mi (8,887.78 km) |
