| Frogn to Karlovo | 1,321.98 mi (2,127.53 km) |
| Frogn to Karnobat | 1,366.67 mi (2,199.45 km) |
| Frogn to Kavarna | 1,346.96 mi (2,167.72 km) |
| Frogn to Kazanlak | 1,335.22 mi (2,148.83 km) |
| Frogn to Knezha | 1,253.41 mi (2,017.17 km) |
| Frogn to Kostinbrod | 1,281.70 mi (2,062.69 km) |
| Frogn to Kozloduy | 1,228.70 mi (1,977.41 km) |
| Frogn to Kyustendil | 1,307.35 mi (2,103.97 km) |
| Frogn to Levski | 1,282.26 mi (2,063.60 km) |
| Frogn to Lom | 1,216.87 mi (1,958.37 km) |
| Frogn to Lovech | 1,288.86 mi (2,074.23 km) |
| Frogn to Lukovit | 1,274.20 mi (2,050.63 km) |
| Frogn to Lyaskovets | 1,310.90 mi (2,109.68 km) |
| Frogn to Mezdra | 1,268.78 mi (2,041.91 km) |
| Frogn to Momchilgrad | 1,404.82 mi (2,260.83 km) |
