| Cities | Distance |
|---|---|
| Trier to Opwijk | 136.84 mi (220.22 km) |
| Trier to Ostend | 192.50 mi (309.80 km) |
| Trier to Oud-Heverlee | 114.58 mi (184.40 km) |
| Trier to Oud-Turnhout | 130.07 mi (209.32 km) |
| Trier to Oudenaarde | 154.00 mi (247.84 km) |
| Trier to Oudenburg | 188.01 mi (302.57 km) |
| Trier to Oupeye | 79.18 mi (127.43 km) |
| Trier to Overijse | 117.03 mi (188.35 km) |
| Trier to Overpelt | 114.34 mi (184.01 km) |
| Trier to Paal | 109.70 mi (176.55 km) |
| Trier to Peer | 108.49 mi (174.60 km) |
| Trier to Pepinster | 66.82 mi (107.53 km) |
| Trier to Peruwelz | 145.24 mi (233.74 km) |
| Trier to Perwez | 100.59 mi (161.88 km) |
| Trier to Philippeville | 97.84 mi (157.46 km) |