| Cities | Distance |
|---|---|
| Harderwijk to Orbetello | 732.52 mi (1,178.88 km) |
| Harderwijk to Oria | 996.10 mi (1,603.07 km) |
| Harderwijk to Oristano | 871.34 mi (1,402.28 km) |
| Harderwijk to Orta Nova | 896.58 mi (1,442.91 km) |
| Harderwijk to Orte | 752.28 mi (1,210.68 km) |
| Harderwijk to Ortona | 802.69 mi (1,291.81 km) |
| Harderwijk to Orvieto | 730.47 mi (1,175.58 km) |
| Harderwijk to Orzinuovi | 518.48 mi (834.42 km) |
| Harderwijk to Osimo | 711.80 mi (1,145.53 km) |
| Harderwijk to Ospitaletto | 510.92 mi (822.25 km) |
| Harderwijk to Ostuni | 980.92 mi (1,578.64 km) |
| Harderwijk to Ottaviano | 897.50 mi (1,444.39 km) |
| Harderwijk to Ovada | 550.40 mi (885.78 km) |
| Harderwijk to Ozieri | 828.47 mi (1,333.30 km) |
| Harderwijk to Paceco | 1,047.34 mi (1,685.53 km) |