| Blackwells Mills to Karlovo | 4,809.94 mi (7,740.86 km) |
| Blackwells Mills to Karnobat | 4,898.27 mi (7,883.00 km) |
| Blackwells Mills to Kavarna | 4,917.68 mi (7,914.25 km) |
| Blackwells Mills to Kazanlak | 4,835.14 mi (7,781.40 km) |
| Blackwells Mills to Knezha | 4,745.38 mi (7,636.95 km) |
| Blackwells Mills to Kostinbrod | 4,737.86 mi (7,624.85 km) |
| Blackwells Mills to Kozloduy | 4,719.71 mi (7,595.64 km) |
| Blackwells Mills to Kyustendil | 4,737.48 mi (7,624.23 km) |
| Blackwells Mills to Levski | 4,793.22 mi (7,713.94 km) |
| Blackwells Mills to Lom | 4,697.94 mi (7,560.61 km) |
| Blackwells Mills to Lovech | 4,786.01 mi (7,702.33 km) |
| Blackwells Mills to Lukovit | 4,761.01 mi (7,662.11 km) |
| Blackwells Mills to Lyaskovets | 4,827.76 mi (7,769.53 km) |
| Blackwells Mills to Mezdra | 4,744.08 mi (7,634.86 km) |
| Blackwells Mills to Momchilgrad | 4,881.17 mi (7,855.48 km) |
