| North Richland Hills to Opwijk | 4,941.85 mi (7,953.14 km) |
| North Richland Hills to Ostend | 4,885.26 mi (7,862.07 km) |
| North Richland Hills to Oud-Heverlee | 4,964.70 mi (7,989.92 km) |
| North Richland Hills to Oud-Turnhout | 4,959.81 mi (7,982.04 km) |
| North Richland Hills to Oudenaarde | 4,923.73 mi (7,923.97 km) |
| North Richland Hills to Oudenburg | 4,889.73 mi (7,869.27 km) |
| North Richland Hills to Oupeye | 5,005.86 mi (8,056.15 km) |
| North Richland Hills to Overijse | 4,961.39 mi (7,984.59 km) |
| North Richland Hills to Overpelt | 4,979.47 mi (8,013.68 km) |
| North Richland Hills to Paal | 4,976.57 mi (8,009.01 km) |
| North Richland Hills to Peer | 4,983.79 mi (8,020.64 km) |
| North Richland Hills to Pepinster | 5,017.41 mi (8,074.74 km) |
| North Richland Hills to Peruwelz | 4,934.41 mi (7,941.16 km) |
| North Richland Hills to Perwez | 4,977.58 mi (8,010.64 km) |
| North Richland Hills to Philippeville | 4,982.26 mi (8,018.17 km) |
