| Castelo Branco to Kobarid | 1,149.07 mi (1,849.25 km) |
| Castelo Branco to Kobilje | 1,286.46 mi (2,070.36 km) |
| Castelo Branco to Kocevje | 1,199.31 mi (1,930.09 km) |
| Castelo Branco to Komen | 1,149.72 mi (1,850.30 km) |
| Castelo Branco to Komenda | 1,192.87 mi (1,919.74 km) |
| Castelo Branco to Koper | 1,144.73 mi (1,842.27 km) |
| Castelo Branco to Kostanjevica na Krki | 1,228.84 mi (1,977.63 km) |
| Castelo Branco to Kostel | 1,199.87 mi (1,931.00 km) |
| Castelo Branco to Kozje | 1,238.39 mi (1,992.99 km) |
| Castelo Branco to Kranj | 1,185.31 mi (1,907.57 km) |
| Castelo Branco to Kranjska Gora | 1,163.07 mi (1,871.78 km) |
| Castelo Branco to Krizevci | 1,272.78 mi (2,048.35 km) |
| Castelo Branco to Krsko | 1,233.05 mi (1,984.41 km) |
| Castelo Branco to Kuzma | 1,274.49 mi (2,051.09 km) |
| Castelo Branco to Lasko | 1,224.63 mi (1,970.85 km) |
