| Mechernich to Oberriet | 262.59 mi (422.59 km) |
| Mechernich to Obersiggenthal | 227.57 mi (366.24 km) |
| Mechernich to Oberwil | 217.15 mi (349.47 km) |
| Mechernich to Oberwingert | 233.60 mi (375.94 km) |
| Mechernich to Oftringen | 234.01 mi (376.60 km) |
| Mechernich to Olten | 231.59 mi (372.71 km) |
| Mechernich to Onex | 306.20 mi (492.79 km) |
| Mechernich to Opfikon | 235.38 mi (378.82 km) |
| Mechernich to Ostermundigen | 254.72 mi (409.94 km) |
| Mechernich to Payerne | 261.72 mi (421.20 km) |
| Mechernich to Pfaffikon | 243.42 mi (391.74 km) |
| Mechernich to Plan-les-Ouates | 307.29 mi (494.53 km) |
| Mechernich to Pratteln | 218.27 mi (351.27 km) |
| Mechernich to Prilly | 280.99 mi (452.21 km) |
| Mechernich to Pully | 282.13 mi (454.04 km) |
