| Gloucester Point to Nuth | 3,976.19 mi (6,399.06 km) |
| Gloucester Point to Oegstgeest | 3,889.08 mi (6,258.88 km) |
| Gloucester Point to Oirschot | 3,938.44 mi (6,338.31 km) |
| Gloucester Point to Oisterwijk | 3,932.43 mi (6,328.64 km) |
| Gloucester Point to Oldebroek | 3,939.98 mi (6,340.79 km) |
| Gloucester Point to Oldenzaal | 3,984.05 mi (6,411.71 km) |
| Gloucester Point to Ommen | 3,958.82 mi (6,371.11 km) |
| Gloucester Point to Oosterend | 3,933.58 mi (6,330.48 km) |
| Gloucester Point to Oosterhout | 3,917.19 mi (6,304.10 km) |
| Gloucester Point to Oosterwolde | 3,942.69 mi (6,345.15 km) |
| Gloucester Point to Oostzaan | 3,900.03 mi (6,276.48 km) |
| Gloucester Point to Opmeer | 3,896.61 mi (6,270.99 km) |
| Gloucester Point to Oss | 3,940.84 mi (6,342.17 km) |
| Gloucester Point to Oud-Beijerland | 3,894.75 mi (6,267.99 km) |
| Gloucester Point to Oudenbosch | 3,904.98 mi (6,284.46 km) |
