| Upper Grand Lagoon to Karlovo | 5,753.22 mi (9,258.91 km) |
| Upper Grand Lagoon to Karnobat | 5,843.02 mi (9,403.44 km) |
| Upper Grand Lagoon to Kavarna | 5,863.95 mi (9,437.12 km) |
| Upper Grand Lagoon to Kazanlak | 5,778.81 mi (9,300.09 km) |
| Upper Grand Lagoon to Knezha | 5,689.29 mi (9,156.03 km) |
| Upper Grand Lagoon to Kostinbrod | 5,680.16 mi (9,141.34 km) |
| Upper Grand Lagoon to Kozloduy | 5,663.76 mi (9,114.93 km) |
| Upper Grand Lagoon to Kyustendil | 5,678.46 mi (9,138.60 km) |
| Upper Grand Lagoon to Levski | 5,737.65 mi (9,233.86 km) |
| Upper Grand Lagoon to Lom | 5,641.71 mi (9,079.46 km) |
| Upper Grand Lagoon to Lovech | 5,729.87 mi (9,221.34 km) |
| Upper Grand Lagoon to Lukovit | 5,704.58 mi (9,180.64 km) |
| Upper Grand Lagoon to Lyaskovets | 5,772.25 mi (9,289.54 km) |
| Upper Grand Lagoon to Mezdra | 5,687.24 mi (9,152.73 km) |
| Upper Grand Lagoon to Momchilgrad | 5,823.31 mi (9,371.72 km) |
