| Castelo Branco to Kocaeli | 1,958.06 mi (3,151.19 km) |
| Castelo Branco to Konak | 1,847.21 mi (2,972.80 km) |
| Castelo Branco to Konakli | 2,132.79 mi (3,432.39 km) |
| Castelo Branco to Konya | 2,138.01 mi (3,440.80 km) |
| Castelo Branco to Koprukoy | 2,582.46 mi (4,156.06 km) |
| Castelo Branco to Korfez | 1,948.32 mi (3,135.52 km) |
| Castelo Branco to Korkut | 2,602.87 mi (4,188.92 km) |
| Castelo Branco to Kose | 2,465.10 mi (3,967.19 km) |
| Castelo Branco to Kovancilar | 2,504.71 mi (4,030.94 km) |
| Castelo Branco to Koyulhisar | 2,370.57 mi (3,815.07 km) |
| Castelo Branco to Kozan | 2,319.91 mi (3,733.54 km) |
| Castelo Branco to Kozlu | 2,043.65 mi (3,288.94 km) |
| Castelo Branco to Kozluk | 2,599.49 mi (4,183.47 km) |
| Castelo Branco to Kucuk Dalyan | 2,366.37 mi (3,808.30 km) |
| Castelo Branco to Kucukcekmece | 1,897.71 mi (3,054.07 km) |
