| Ketrzyn to Oerlinghausen | 547.48 mi (881.08 km) |
| Ketrzyn to Oestrich-Winkel | 633.54 mi (1,019.58 km) |
| Ketrzyn to Offenburg | 697.21 mi (1,122.04 km) |
| Ketrzyn to Oftersheim | 635.84 mi (1,023.29 km) |
| Ketrzyn to Ohrdruf | 500.98 mi (806.25 km) |
| Ketrzyn to Ohringen | 609.90 mi (981.54 km) |
| Ketrzyn to Olbernhau | 413.16 mi (664.91 km) |
| Ketrzyn to Olching | 595.34 mi (958.10 km) |
| Ketrzyn to Oldenburg | 542.87 mi (873.67 km) |
| Ketrzyn to Oldenburg in Holstein | 424.33 mi (682.90 km) |
| Ketrzyn to Olfen | 604.83 mi (973.37 km) |
| Ketrzyn to Olpe | 606.26 mi (975.68 km) |
| Ketrzyn to Olsberg | 571.01 mi (918.95 km) |
| Ketrzyn to Oranienburg | 347.56 mi (559.34 km) |
| Ketrzyn to Ortenberg | 580.87 mi (934.82 km) |
