| Porterville to Karlovo | 6,540.51 mi (10,525.94 km) |
| Porterville to Karnobat | 6,592.71 mi (10,609.95 km) |
| Porterville to Kavarna | 6,573.63 mi (10,579.24 km) |
| Porterville to Kazanlak | 6,556.47 mi (10,551.62 km) |
| Porterville to Knezha | 6,471.06 mi (10,414.16 km) |
| Porterville to Kostinbrod | 6,490.73 mi (10,445.82 km) |
| Porterville to Kozloduy | 6,445.43 mi (10,372.92 km) |
| Porterville to Kyustendil | 6,509.12 mi (10,475.41 km) |
| Porterville to Levski | 6,504.44 mi (10,467.88 km) |
| Porterville to Lom | 6,430.71 mi (10,349.23 km) |
| Porterville to Lovech | 6,508.54 mi (10,474.49 km) |
| Porterville to Lukovit | 6,491.21 mi (10,446.59 km) |
| Porterville to Lyaskovets | 6,534.53 mi (10,516.31 km) |
| Porterville to Mezdra | 6,482.75 mi (10,432.98 km) |
| Porterville to Momchilgrad | 6,622.86 mi (10,658.46 km) |
