| Niederkassel to Jicin | 365.35 mi (587.98 km) |
| Niederkassel to Jihlava | 391.37 mi (629.84 km) |
| Niederkassel to Jindrichuv Hradec | 372.26 mi (599.09 km) |
| Niederkassel to Jirkov | 281.73 mi (453.39 km) |
| Niederkassel to Kadan | 275.20 mi (442.89 km) |
| Niederkassel to Karlovy Vary | 259.60 mi (417.79 km) |
| Niederkassel to Karvina | 511.39 mi (823.01 km) |
| Niederkassel to Kladno | 313.95 mi (505.26 km) |
| Niederkassel to Klasterec nad Ohri | 270.76 mi (435.74 km) |
| Niederkassel to Klatovy | 294.23 mi (473.52 km) |
| Niederkassel to Kolin | 363.44 mi (584.91 km) |
| Niederkassel to Koprivnice | 498.00 mi (801.45 km) |
| Niederkassel to Kralupy nad Vltavou | 322.01 mi (518.22 km) |
| Niederkassel to Kraluv Dvur | 314.09 mi (505.47 km) |
| Niederkassel to Krnov | 471.44 mi (758.71 km) |
