| Nieuwpoort to Oakley (California) | 5,423.88 mi (8,728.89 km) |
| Nieuwpoort to Oakton (Virginia) | 3,802.36 mi (6,119.30 km) |
| Nieuwpoort to Oakville (Missouri) | 4,336.38 mi (6,978.74 km) |
| Nieuwpoort to Oatfield (Oregon) | 5,014.44 mi (8,069.96 km) |
| Nieuwpoort to Ocala (Florida) | 4,466.59 mi (7,188.29 km) |
| Nieuwpoort to Ocean Acres (New Jersey) | 3,641.10 mi (5,859.79 km) |
| Nieuwpoort to Ocean City (New Jersey) | 3,675.30 mi (5,914.82 km) |
| Nieuwpoort to Ocean Pines (Maryland) | 3,737.26 mi (6,014.53 km) |
| Nieuwpoort to Ocean Pointe (Hawaii) | 7,297.62 mi (11,744.38 km) |
| Nieuwpoort to Ocean Springs (Mississippi) | 4,677.46 mi (7,527.64 km) |
| Nieuwpoort to Oceanside (California) | 5,568.24 mi (8,961.21 km) |
| Nieuwpoort to Oceanside (New York) | 3,575.82 mi (5,754.72 km) |
| Nieuwpoort to Ocoee (Florida) | 4,470.62 mi (7,194.76 km) |
| Nieuwpoort to Oconomowoc (Wisconsin) | 4,044.66 mi (6,509.25 km) |
| Nieuwpoort to Odenton (Maryland) | 3,769.65 mi (6,066.67 km) |
