| Biddeford to Karis | 3,816.31 mi (6,141.76 km) |
| Biddeford to Karkkila | 3,817.89 mi (6,144.30 km) |
| Biddeford to Kauhajoki | 3,698.49 mi (5,952.14 km) |
| Biddeford to Kauhava | 3,703.71 mi (5,960.55 km) |
| Biddeford to Kauniainen | 3,843.85 mi (6,186.08 km) |
| Biddeford to Kemi | 3,665.49 mi (5,899.04 km) |
| Biddeford to Kemijarvi | 3,707.61 mi (5,966.82 km) |
| Biddeford to Kempele | 3,714.83 mi (5,978.45 km) |
| Biddeford to Kerava | 3,848.70 mi (6,193.89 km) |
| Biddeford to Keuruu | 3,776.36 mi (6,077.47 km) |
| Biddeford to Kiiminki | 3,714.98 mi (5,978.68 km) |
| Biddeford to Kirkkonummi | 3,837.64 mi (6,176.09 km) |
| Biddeford to Kitee | 3,933.79 mi (6,330.83 km) |
| Biddeford to Kiuruvesi | 3,784.40 mi (6,090.41 km) |
| Biddeford to Kivisto | 3,843.64 mi (6,185.75 km) |
