| Katy to Karlovo | 6,174.04 mi (9,936.16 km) |
| Katy to Karnobat | 6,256.16 mi (10,068.31 km) |
| Katy to Kavarna | 6,267.36 mi (10,086.35 km) |
| Katy to Kazanlak | 6,197.71 mi (9,974.25 km) |
| Katy to Knezha | 6,107.49 mi (9,829.05 km) |
| Katy to Kostinbrod | 6,105.39 mi (9,825.68 km) |
| Katy to Kozloduy | 6,081.43 mi (9,787.12 km) |
| Katy to Kyustendil | 6,108.65 mi (9,830.92 km) |
| Katy to Levski | 6,153.02 mi (9,902.33 km) |
| Katy to Lom | 6,060.80 mi (9,753.92 km) |
| Katy to Lovech | 6,148.08 mi (9,894.38 km) |
| Katy to Lukovit | 6,124.30 mi (9,856.11 km) |
| Katy to Lyaskovets | 6,187.17 mi (9,957.28 km) |
| Katy to Mezdra | 6,108.85 mi (9,831.24 km) |
| Katy to Momchilgrad | 6,248.53 mi (10,056.04 km) |
