| Porto Tolle to Karlovo | 642.25 mi (1,033.61 km) |
| Porto Tolle to Karnobat | 747.70 mi (1,203.30 km) |
| Porto Tolle to Kavarna | 799.03 mi (1,285.91 km) |
| Porto Tolle to Kazanlak | 671.42 mi (1,080.55 km) |
| Porto Tolle to Knezha | 590.60 mi (950.47 km) |
| Porto Tolle to Kostinbrod | 561.97 mi (904.41 km) |
| Porto Tolle to Kozloduy | 569.15 mi (915.95 km) |
| Porto Tolle to Kyustendil | 549.83 mi (884.87 km) |
| Porto Tolle to Levski | 643.94 mi (1,036.32 km) |
| Porto Tolle to Lom | 544.36 mi (876.06 km) |
| Porto Tolle to Lovech | 627.86 mi (1,010.44 km) |
| Porto Tolle to Lukovit | 599.93 mi (965.50 km) |
| Porto Tolle to Lyaskovets | 677.05 mi (1,089.61 km) |
| Porto Tolle to Mezdra | 578.28 mi (930.66 km) |
| Porto Tolle to Momchilgrad | 699.37 mi (1,125.53 km) |
