| Neckarsulm to Opwijk | 254.88 mi (410.19 km) |
| Neckarsulm to Ostend | 312.09 mi (502.25 km) |
| Neckarsulm to Oud-Heverlee | 231.93 mi (373.26 km) |
| Neckarsulm to Oud-Turnhout | 237.98 mi (382.99 km) |
| Neckarsulm to Oudenaarde | 274.63 mi (441.98 km) |
| Neckarsulm to Oudenburg | 307.70 mi (495.19 km) |
| Neckarsulm to Oupeye | 190.58 mi (306.71 km) |
| Neckarsulm to Overijse | 235.58 mi (379.13 km) |
| Neckarsulm to Overpelt | 218.89 mi (352.27 km) |
| Neckarsulm to Paal | 220.22 mi (354.42 km) |
| Neckarsulm to Peer | 214.07 mi (344.52 km) |
| Neckarsulm to Pepinster | 178.99 mi (288.06 km) |
| Neckarsulm to Peruwelz | 267.38 mi (430.30 km) |
| Neckarsulm to Perwez | 219.71 mi (353.59 km) |
| Neckarsulm to Philippeville | 220.18 mi (354.35 km) |
