| Mount Washington to Karlovo | 5,356.92 mi (8,621.13 km) |
| Mount Washington to Karnobat | 5,440.24 mi (8,755.21 km) |
| Mount Washington to Kavarna | 5,453.22 mi (8,776.11 km) |
| Mount Washington to Kazanlak | 5,380.87 mi (8,659.68 km) |
| Mount Washington to Knezha | 5,290.68 mi (8,514.52 km) |
| Mount Washington to Kostinbrod | 5,287.70 mi (8,509.73 km) |
| Mount Washington to Kozloduy | 5,264.68 mi (8,472.68 km) |
| Mount Washington to Kyustendil | 5,290.46 mi (8,514.18 km) |
| Mount Washington to Levski | 5,336.66 mi (8,588.53 km) |
| Mount Washington to Lom | 5,243.84 mi (8,439.14 km) |
| Mount Washington to Lovech | 5,331.30 mi (8,579.90 km) |
| Mount Washington to Lukovit | 5,307.29 mi (8,541.26 km) |
| Mount Washington to Lyaskovets | 5,370.90 mi (8,643.63 km) |
| Mount Washington to Mezdra | 5,291.59 mi (8,515.99 km) |
| Mount Washington to Momchilgrad | 5,430.93 mi (8,740.23 km) |
