| Healdsburg to Opwijk | 5,468.03 mi (8,799.94 km) |
| Healdsburg to Ostend | 5,419.14 mi (8,721.26 km) |
| Healdsburg to Oud-Heverlee | 5,488.49 mi (8,832.87 km) |
| Healdsburg to Oud-Turnhout | 5,471.18 mi (8,805.01 km) |
| Healdsburg to Oudenaarde | 5,458.04 mi (8,783.86 km) |
| Healdsburg to Oudenburg | 5,423.63 mi (8,728.49 km) |
| Healdsburg to Oupeye | 5,521.92 mi (8,886.67 km) |
| Healdsburg to Overijse | 5,487.50 mi (8,831.27 km) |
| Healdsburg to Overpelt | 5,488.29 mi (8,832.56 km) |
| Healdsburg to Paal | 5,491.26 mi (8,837.33 km) |
| Healdsburg to Peer | 5,493.82 mi (8,841.45 km) |
| Healdsburg to Pepinster | 5,534.31 mi (8,906.62 km) |
| Healdsburg to Peruwelz | 5,475.27 mi (8,811.59 km) |
| Healdsburg to Perwez | 5,503.81 mi (8,857.52 km) |
| Healdsburg to Philippeville | 5,519.23 mi (8,882.34 km) |
