| Petersburg to Karlovo | 5,070.90 mi (8,160.82 km) |
| Petersburg to Karnobat | 5,160.49 mi (8,305.01 km) |
| Petersburg to Kavarna | 5,181.43 mi (8,338.70 km) |
| Petersburg to Kazanlak | 5,096.42 mi (8,201.89 km) |
| Petersburg to Knezha | 5,006.86 mi (8,057.76 km) |
| Petersburg to Kostinbrod | 4,998.05 mi (8,043.58 km) |
| Petersburg to Kozloduy | 4,981.30 mi (8,016.63 km) |
| Petersburg to Kyustendil | 4,996.69 mi (8,041.40 km) |
| Petersburg to Levski | 5,055.15 mi (8,135.47 km) |
| Petersburg to Lom | 4,959.30 mi (7,981.22 km) |
| Petersburg to Lovech | 5,047.45 mi (8,123.08 km) |
| Petersburg to Lukovit | 5,022.21 mi (8,082.46 km) |
| Petersburg to Lyaskovets | 5,089.74 mi (8,191.15 km) |
| Petersburg to Mezdra | 5,004.94 mi (8,054.67 km) |
| Petersburg to Momchilgrad | 5,141.25 mi (8,274.04 km) |
