| Purmerend to Oerlinghausen | 161.51 mi (259.93 km) |
| Purmerend to Oestrich-Winkel | 217.30 mi (349.70 km) |
| Purmerend to Offenburg | 307.93 mi (495.57 km) |
| Purmerend to Oftersheim | 267.88 mi (431.11 km) |
| Purmerend to Ohrdruf | 273.33 mi (439.88 km) |
| Purmerend to Ohringen | 302.18 mi (486.30 km) |
| Purmerend to Olbernhau | 381.29 mi (613.63 km) |
| Purmerend to Olching | 408.43 mi (657.30 km) |
| Purmerend to Oldenburg | 143.34 mi (230.68 km) |
| Purmerend to Oldenburg in Holstein | 274.12 mi (441.16 km) |
| Purmerend to Olfen | 116.57 mi (187.61 km) |
| Purmerend to Olpe | 160.32 mi (258.01 km) |
| Purmerend to Olsberg | 170.21 mi (273.92 km) |
| Purmerend to Oranienburg | 347.80 mi (559.73 km) |
| Purmerend to Ortenberg | 230.64 mi (371.19 km) |
