| Cities | Distance |
|---|---|
| Nieuwkoop to Orbetello | 737.14 mi (1,186.32 km) |
| Nieuwkoop to Oria | 1,010.86 mi (1,626.83 km) |
| Nieuwkoop to Oristano | 867.58 mi (1,396.24 km) |
| Nieuwkoop to Orta Nova | 909.22 mi (1,463.25 km) |
| Nieuwkoop to Orte | 759.72 mi (1,222.65 km) |
| Nieuwkoop to Ortona | 814.30 mi (1,310.49 km) |
| Nieuwkoop to Orvieto | 737.62 mi (1,187.09 km) |
| Nieuwkoop to Orzinuovi | 524.05 mi (843.38 km) |
| Nieuwkoop to Osimo | 723.29 mi (1,164.02 km) |
| Nieuwkoop to Ospitaletto | 517.24 mi (832.42 km) |
| Nieuwkoop to Ostuni | 995.91 mi (1,602.76 km) |
| Nieuwkoop to Ottaviano | 907.23 mi (1,460.04 km) |
| Nieuwkoop to Ovada | 550.57 mi (886.06 km) |
| Nieuwkoop to Ozieri | 826.05 mi (1,329.40 km) |
| Nieuwkoop to Paceco | 1,050.57 mi (1,690.73 km) |