| Cities | Distance |
|---|---|
| Trets to Opwijk | 524.30 mi (843.78 km) |
| Trets to Ostend | 552.75 mi (889.57 km) |
| Trets to Oud-Heverlee | 512.58 mi (824.92 km) |
| Trets to Oud-Turnhout | 544.74 mi (876.67 km) |
| Trets to Oudenaarde | 520.75 mi (838.07 km) |
| Trets to Oudenburg | 549.04 mi (883.59 km) |
| Trets to Oupeye | 501.72 mi (807.44 km) |
| Trets to Overijse | 509.77 mi (820.39 km) |
| Trets to Overpelt | 536.99 mi (864.20 km) |
| Trets to Paal | 525.13 mi (845.11 km) |
| Trets to Peer | 531.15 mi (854.81 km) |
| Trets to Pepinster | 491.97 mi (791.75 km) |
| Trets to Peruwelz | 498.37 mi (802.05 km) |
| Trets to Perwez | 497.58 mi (800.78 km) |
| Trets to Philippeville | 469.66 mi (755.84 km) |