| Hertford to Kecskemet | 948.03 mi (1,525.71 km) |
| Hertford to Kerepestarcsa | 910.04 mi (1,464.57 km) |
| Hertford to Keszthely | 851.92 mi (1,371.03 km) |
| Hertford to Kiskoros | 940.70 mi (1,513.90 km) |
| Hertford to Kiskunfelegyhaza | 961.31 mi (1,547.08 km) |
| Hertford to Kiskunhalas | 955.59 mi (1,537.88 km) |
| Hertford to Kiskunlachaza | 910.54 mi (1,465.37 km) |
| Hertford to Kiskunmajsa | 963.79 mi (1,551.06 km) |
| Hertford to Kisujszallas | 983.24 mi (1,582.38 km) |
| Hertford to Kisvarda | 1,010.35 mi (1,626.01 km) |
| Hertford to Komarom | 856.54 mi (1,378.47 km) |
| Hertford to Komlo | 913.83 mi (1,470.67 km) |
| Hertford to Kormend | 817.32 mi (1,315.34 km) |
| Hertford to Koszeg | 802.60 mi (1,291.66 km) |
| Hertford to Lajosmizse | 938.64 mi (1,510.60 km) |
