| New Carrollton to Opwijk | 3,843.50 mi (6,185.52 km) |
| New Carrollton to Ostend | 3,785.89 mi (6,092.80 km) |
| New Carrollton to Oud-Heverlee | 3,866.48 mi (6,222.50 km) |
| New Carrollton to Oud-Turnhout | 3,866.84 mi (6,223.07 km) |
| New Carrollton to Oudenaarde | 3,822.76 mi (6,152.14 km) |
| New Carrollton to Oudenburg | 3,790.19 mi (6,099.71 km) |
| New Carrollton to Oupeye | 3,909.25 mi (6,291.33 km) |
| New Carrollton to Overijse | 3,862.36 mi (6,215.87 km) |
| New Carrollton to Overpelt | 3,886.80 mi (6,255.19 km) |
| New Carrollton to Paal | 3,881.60 mi (6,246.84 km) |
| New Carrollton to Peer | 3,890.46 mi (6,261.09 km) |
| New Carrollton to Pepinster | 3,920.03 mi (6,308.68 km) |
| New Carrollton to Peruwelz | 3,830.45 mi (6,164.51 km) |
| New Carrollton to Perwez | 3,877.90 mi (6,240.88 km) |
| New Carrollton to Philippeville | 3,878.14 mi (6,241.26 km) |
