| Rouen to Karlovo | 1,224.17 mi (1,970.11 km) |
| Rouen to Karnobat | 1,320.06 mi (2,124.43 km) |
| Rouen to Kavarna | 1,353.46 mi (2,178.19 km) |
| Rouen to Kazanlak | 1,251.05 mi (2,013.36 km) |
| Rouen to Knezha | 1,163.09 mi (1,871.82 km) |
| Rouen to Kostinbrod | 1,148.78 mi (1,848.78 km) |
| Rouen to Kozloduy | 1,138.39 mi (1,832.07 km) |
| Rouen to Kyustendil | 1,145.33 mi (1,843.24 km) |
| Rouen to Levski | 1,213.74 mi (1,953.32 km) |
| Rouen to Lom | 1,115.21 mi (1,794.75 km) |
| Rouen to Lovech | 1,203.21 mi (1,936.38 km) |
| Rouen to Lukovit | 1,176.84 mi (1,893.94 km) |
| Rouen to Lyaskovets | 1,248.35 mi (2,009.03 km) |
| Rouen to Mezdra | 1,158.13 mi (1,863.83 km) |
| Rouen to Momchilgrad | 1,291.36 mi (2,078.24 km) |
