| Cologne to Oberriet | 276.58 mi (445.12 km) |
| Cologne to Obersiggenthal | 245.87 mi (395.69 km) |
| Cologne to Oberwil | 238.05 mi (383.11 km) |
| Cologne to Oberwingert | 250.05 mi (402.41 km) |
| Cologne to Oftringen | 253.86 mi (408.55 km) |
| Cologne to Olten | 251.46 mi (404.69 km) |
| Cologne to Onex | 330.71 mi (532.22 km) |
| Cologne to Opfikon | 252.76 mi (406.78 km) |
| Cologne to Ostermundigen | 276.16 mi (444.44 km) |
| Cologne to Payerne | 284.65 mi (458.09 km) |
| Cologne to Pfaffikon | 260.12 mi (418.63 km) |
| Cologne to Plan-les-Ouates | 331.76 mi (533.92 km) |
| Cologne to Pratteln | 238.67 mi (384.10 km) |
| Cologne to Prilly | 304.65 mi (490.28 km) |
| Cologne to Pully | 305.65 mi (491.89 km) |
