| Calahorra to Karlovo | 1,358.98 mi (2,187.07 km) |
| Calahorra to Karnobat | 1,468.45 mi (2,363.25 km) |
| Calahorra to Kavarna | 1,527.96 mi (2,459.01 km) |
| Calahorra to Kazanlak | 1,389.07 mi (2,235.49 km) |
| Calahorra to Knezha | 1,315.70 mi (2,117.42 km) |
| Calahorra to Kostinbrod | 1,277.39 mi (2,055.76 km) |
| Calahorra to Kozloduy | 1,296.59 mi (2,086.66 km) |
| Calahorra to Kyustendil | 1,255.43 mi (2,020.42 km) |
| Calahorra to Levski | 1,369.05 mi (2,203.27 km) |
| Calahorra to Lom | 1,271.72 mi (2,046.64 km) |
| Calahorra to Lovech | 1,350.06 mi (2,172.72 km) |
| Calahorra to Lukovit | 1,321.99 mi (2,127.54 km) |
| Calahorra to Lyaskovets | 1,400.39 mi (2,253.71 km) |
| Calahorra to Mezdra | 1,298.99 mi (2,090.53 km) |
| Calahorra to Momchilgrad | 1,402.79 mi (2,257.58 km) |
