| Kardla to Oestrich-Winkel | 854.62 mi (1,375.38 km) |
| Kardla to Offenburg | 942.31 mi (1,516.50 km) |
| Kardla to Oftersheim | 874.09 mi (1,406.72 km) |
| Kardla to Ohrdruf | 736.90 mi (1,185.93 km) |
| Kardla to Ohringen | 860.69 mi (1,385.14 km) |
| Kardla to Olbernhau | 685.38 mi (1,103.01 km) |
| Kardla to Olching | 878.38 mi (1,413.62 km) |
| Kardla to Oldenburg | 688.83 mi (1,108.57 km) |
| Kardla to Oldenburg in Holstein | 554.11 mi (891.75 km) |
| Kardla to Olfen | 782.42 mi (1,259.18 km) |
| Kardla to Olpe | 804.95 mi (1,295.44 km) |
| Kardla to Olsberg | 769.09 mi (1,237.74 km) |
| Kardla to Oranienburg | 566.34 mi (911.44 km) |
| Kardla to Ortenberg | 806.73 mi (1,298.31 km) |
| Kardla to Oschatz | 652.64 mi (1,050.32 km) |
