| Thouare-sur-Loire to Karlovo | 1,315.59 mi (2,117.25 km) |
| Thouare-sur-Loire to Karnobat | 1,417.71 mi (2,281.58 km) |
| Thouare-sur-Loire to Kavarna | 1,460.41 mi (2,350.30 km) |
| Thouare-sur-Loire to Kazanlak | 1,344.04 mi (2,163.03 km) |
| Thouare-sur-Loire to Knezha | 1,259.56 mi (2,027.07 km) |
| Thouare-sur-Loire to Kostinbrod | 1,236.62 mi (1,990.15 km) |
| Thouare-sur-Loire to Kozloduy | 1,236.33 mi (1,989.68 km) |
| Thouare-sur-Loire to Kyustendil | 1,226.60 mi (1,974.03 km) |
| Thouare-sur-Loire to Levski | 1,312.05 mi (2,111.54 km) |
| Thouare-sur-Loire to Lom | 1,212.10 mi (1,950.68 km) |
| Thouare-sur-Loire to Lovech | 1,298.43 mi (2,089.61 km) |
| Thouare-sur-Loire to Lukovit | 1,270.98 mi (2,045.45 km) |
| Thouare-sur-Loire to Lyaskovets | 1,346.12 mi (2,166.38 km) |
| Thouare-sur-Loire to Mezdra | 1,250.43 mi (2,012.37 km) |
| Thouare-sur-Loire to Momchilgrad | 1,375.83 mi (2,214.19 km) |
