| Fostoria to Karis | 4,325.68 mi (6,961.51 km) |
| Fostoria to Karkkila | 4,322.28 mi (6,956.03 km) |
| Fostoria to Kauhajoki | 4,192.13 mi (6,746.58 km) |
| Fostoria to Kauhava | 4,189.68 mi (6,742.63 km) |
| Fostoria to Kauniainen | 4,349.45 mi (6,999.76 km) |
| Fostoria to Kemi | 4,124.80 mi (6,638.23 km) |
| Fostoria to Kemijarvi | 4,151.69 mi (6,681.51 km) |
| Fostoria to Kempele | 4,179.50 mi (6,726.26 km) |
| Fostoria to Kerava | 4,351.96 mi (7,003.80 km) |
| Fostoria to Keuruu | 4,265.63 mi (6,864.87 km) |
| Fostoria to Kiiminki | 4,177.09 mi (6,722.37 km) |
| Fostoria to Kirkkonummi | 4,344.80 mi (6,992.28 km) |
| Fostoria to Kitee | 4,410.69 mi (7,098.32 km) |
| Fostoria to Kiuruvesi | 4,257.47 mi (6,851.73 km) |
| Fostoria to Kivisto | 4,348.13 mi (6,997.64 km) |
