| Diessen am Ammersee to Opwijk | 373.84 mi (601.64 km) |
| Diessen am Ammersee to Ostend | 430.32 mi (692.53 km) |
| Diessen am Ammersee to Oud-Heverlee | 351.07 mi (564.99 km) |
| Diessen am Ammersee to Oud-Turnhout | 359.00 mi (577.76 km) |
| Diessen am Ammersee to Oudenaarde | 391.99 mi (630.85 km) |
| Diessen am Ammersee to Oudenburg | 425.85 mi (685.34 km) |
| Diessen am Ammersee to Oupeye | 310.83 mi (500.23 km) |
| Diessen am Ammersee to Overijse | 354.23 mi (570.08 km) |
| Diessen am Ammersee to Overpelt | 340.06 mi (547.27 km) |
| Diessen am Ammersee to Paal | 340.86 mi (548.57 km) |
| Diessen am Ammersee to Peer | 335.16 mi (539.39 km) |
| Diessen am Ammersee to Pepinster | 298.96 mi (481.12 km) |
| Diessen am Ammersee to Peruwelz | 382.45 mi (615.49 km) |
| Diessen am Ammersee to Perwez | 338.00 mi (543.97 km) |
| Diessen am Ammersee to Philippeville | 334.58 mi (538.46 km) |
