| Karnobat to Oestrich-Winkel | 1,034.86 mi (1,665.45 km) |
| Karnobat to Offenburg | 1,002.51 mi (1,613.38 km) |
| Karnobat to Oftersheim | 994.57 mi (1,600.61 km) |
| Karnobat to Ohrdruf | 952.01 mi (1,532.12 km) |
| Karnobat to Ohringen | 951.86 mi (1,531.87 km) |
| Karnobat to Olbernhau | 850.40 mi (1,368.58 km) |
| Karnobat to Olching | 849.46 mi (1,367.08 km) |
| Karnobat to Oldenburg | 1,126.94 mi (1,813.63 km) |
| Karnobat to Oldenburg in Holstein | 1,087.53 mi (1,750.21 km) |
| Karnobat to Olfen | 1,108.54 mi (1,784.03 km) |
| Karnobat to Olpe | 1,069.87 mi (1,721.79 km) |
| Karnobat to Olsberg | 1,054.91 mi (1,697.72 km) |
| Karnobat to Oranienburg | 944.31 mi (1,519.72 km) |
| Karnobat to Ortenberg | 1,001.99 mi (1,612.55 km) |
| Karnobat to Oschatz | 884.26 mi (1,423.08 km) |
