| Hertford to Kamen | 331.75 mi (533.90 km) |
| Hertford to Kamenz | 609.50 mi (980.90 km) |
| Hertford to Kamp-Lintfort | 284.05 mi (457.14 km) |
| Hertford to Kandel | 409.33 mi (658.75 km) |
| Hertford to Kappeln | 458.29 mi (737.55 km) |
| Hertford to Karben | 399.12 mi (642.32 km) |
| Hertford to Karlsdorf-Neuthard | 421.01 mi (677.55 km) |
| Hertford to Karlsfeld | 568.33 mi (914.64 km) |
| Hertford to Karlsruhe | 419.89 mi (675.74 km) |
| Hertford to Kassel | 412.38 mi (663.66 km) |
| Hertford to Kaufbeuren | 547.47 mi (881.07 km) |
| Hertford to Kaufering | 550.02 mi (885.17 km) |
| Hertford to Kaufungen | 417.89 mi (672.53 km) |
| Hertford to Kehl | 414.13 mi (666.48 km) |
| Hertford to Kelheim | 562.06 mi (904.54 km) |
