| Karlovo to Oschersleben | 904.09 mi (1,455.00 km) |
| Karlovo to Osnabruck | 1,023.39 mi (1,646.99 km) |
| Karlovo to Ostbevern | 1,021.34 mi (1,643.68 km) |
| Karlovo to Osterburg | 923.59 mi (1,486.38 km) |
| Karlovo to Ostercappeln | 1,019.58 mi (1,640.86 km) |
| Karlovo to Osterhofen | 705.15 mi (1,134.82 km) |
| Karlovo to Osterholz-Scharmbeck | 1,036.13 mi (1,667.48 km) |
| Karlovo to Osternienburg | 869.61 mi (1,399.50 km) |
| Karlovo to Osterode | 924.87 mi (1,488.43 km) |
| Karlovo to Osterwieck | 919.36 mi (1,479.56 km) |
| Karlovo to Ostfildern | 858.42 mi (1,381.49 km) |
| Karlovo to Osthofen | 924.22 mi (1,487.39 km) |
| Karlovo to Ostrhauderfehn | 1,071.13 mi (1,723.82 km) |
| Karlovo to Ostringen | 894.41 mi (1,439.41 km) |
| Karlovo to Oststeinbek | 1,007.90 mi (1,622.05 km) |
