| Cities | Distance |
|---|---|
| Trets to Oestrich-Winkel | 465.79 mi (749.62 km) |
| Trets to Offenburg | 363.20 mi (584.52 km) |
| Trets to Oftersheim | 431.87 mi (695.03 km) |
| Trets to Ohrdruf | 562.13 mi (904.66 km) |
| Trets to Ohringen | 437.04 mi (703.35 km) |
| Trets to Olbernhau | 614.46 mi (988.87 km) |
| Trets to Olching | 425.62 mi (684.97 km) |
| Trets to Oldenburg | 679.89 mi (1,094.17 km) |
| Trets to Oldenburg in Holstein | 785.66 mi (1,264.39 km) |
| Trets to Olfen | 576.80 mi (928.26 km) |
| Trets to Olpe | 532.58 mi (857.10 km) |
| Trets to Olsberg | 561.40 mi (903.48 km) |
| Trets to Oranienburg | 730.48 mi (1,175.59 km) |
| Trets to Ortenberg | 503.03 mi (809.54 km) |
| Trets to Oschatz | 643.48 mi (1,035.59 km) |