| Montlouis-sur-Loire to Karlovo | 1,210.82 mi (1,948.63 km) |
| Montlouis-sur-Loire to Karnobat | 1,312.37 mi (2,112.05 km) |
| Montlouis-sur-Loire to Kavarna | 1,354.38 mi (2,179.67 km) |
| Montlouis-sur-Loire to Kazanlak | 1,239.12 mi (1,994.17 km) |
| Montlouis-sur-Loire to Knezha | 1,154.22 mi (1,857.54 km) |
| Montlouis-sur-Loire to Kostinbrod | 1,132.19 mi (1,822.08 km) |
| Montlouis-sur-Loire to Kozloduy | 1,130.84 mi (1,819.90 km) |
| Montlouis-sur-Loire to Kyustendil | 1,123.04 mi (1,807.35 km) |
| Montlouis-sur-Loire to Levski | 1,206.58 mi (1,941.81 km) |
| Montlouis-sur-Loire to Lom | 1,106.68 mi (1,781.03 km) |
| Montlouis-sur-Loire to Lovech | 1,193.23 mi (1,920.33 km) |
| Montlouis-sur-Loire to Lukovit | 1,165.88 mi (1,876.30 km) |
| Montlouis-sur-Loire to Lyaskovets | 1,240.73 mi (1,996.76 km) |
| Montlouis-sur-Loire to Mezdra | 1,145.50 mi (1,843.50 km) |
| Montlouis-sur-Loire to Momchilgrad | 1,271.99 mi (2,047.06 km) |
