| Portugalete to Kothen | 905.12 mi (1,456.64 km) |
| Portugalete to Kranenburg | 719.72 mi (1,158.27 km) |
| Portugalete to Krefeld | 711.62 mi (1,145.24 km) |
| Portugalete to Kressbronn am Bodensee | 678.14 mi (1,091.36 km) |
| Portugalete to Kreuzau | 680.03 mi (1,094.41 km) |
| Portugalete to Kreuztal | 737.24 mi (1,186.48 km) |
| Portugalete to Kriftel | 715.94 mi (1,152.19 km) |
| Portugalete to Kronach | 828.14 mi (1,332.76 km) |
| Portugalete to Kronberg | 721.25 mi (1,160.74 km) |
| Portugalete to Kronshagen | 963.35 mi (1,550.37 km) |
| Portugalete to Krumbach | 728.02 mi (1,171.63 km) |
| Portugalete to Kulmbach | 827.42 mi (1,331.60 km) |
| Portugalete to Kummersbruck | 823.86 mi (1,325.88 km) |
| Portugalete to Kunzell | 779.56 mi (1,254.59 km) |
| Portugalete to Kunzelsau | 731.61 mi (1,177.41 km) |
