| Castelo Branco to Kluczbork | 1,455.46 mi (2,342.33 km) |
| Castelo Branco to Knurow | 1,455.84 mi (2,342.95 km) |
| Castelo Branco to Kobylka | 1,608.63 mi (2,588.84 km) |
| Castelo Branco to Kokoszki | 1,566.65 mi (2,521.28 km) |
| Castelo Branco to Kolbuszowa | 1,586.43 mi (2,553.11 km) |
| Castelo Branco to Kolno | 1,664.62 mi (2,678.94 km) |
| Castelo Branco to Kolo | 1,504.92 mi (2,421.94 km) |
| Castelo Branco to Kolobrzeg | 1,459.70 mi (2,349.15 km) |
| Castelo Branco to Koluszki | 1,538.55 mi (2,476.05 km) |
| Castelo Branco to Komorniki | 1,433.24 mi (2,306.57 km) |
| Castelo Branco to Konin | 1,491.28 mi (2,399.99 km) |
| Castelo Branco to Konskie | 1,550.03 mi (2,494.54 km) |
| Castelo Branco to Konstancin-Jeziorna | 1,599.19 mi (2,573.64 km) |
| Castelo Branco to Konstantynow Lodzki | 1,520.03 mi (2,446.25 km) |
| Castelo Branco to Koronowo | 1,512.46 mi (2,434.07 km) |
