| Castro Valley to Karis | 5,405.48 mi (8,699.27 km) |
| Castro Valley to Karkkila | 5,385.55 mi (8,667.20 km) |
| Castro Valley to Kauhajoki | 5,238.18 mi (8,430.03 km) |
| Castro Valley to Kauhava | 5,210.73 mi (8,385.86 km) |
| Castro Valley to Kauniainen | 5,413.00 mi (8,711.37 km) |
| Castro Valley to Kemi | 5,069.66 mi (8,158.84 km) |
| Castro Valley to Kemijarvi | 5,043.68 mi (8,117.02 km) |
| Castro Valley to Kempele | 5,132.75 mi (8,260.36 km) |
| Castro Valley to Kerava | 5,407.15 mi (8,701.97 km) |
| Castro Valley to Keuruu | 5,286.24 mi (8,507.38 km) |
| Castro Valley to Kiiminki | 5,122.46 mi (8,243.80 km) |
| Castro Valley to Kirkkonummi | 5,414.35 mi (8,713.56 km) |
| Castro Valley to Kitee | 5,368.27 mi (8,639.39 km) |
| Castro Valley to Kiuruvesi | 5,225.76 mi (8,410.06 km) |
| Castro Valley to Kivisto | 5,408.06 mi (8,703.44 km) |
