| Siena to Jicin | 527.01 mi (848.14 km) |
| Siena to Jihlava | 466.54 mi (750.82 km) |
| Siena to Jindrichuv Hradec | 438.99 mi (706.48 km) |
| Siena to Jirkov | 506.10 mi (814.49 km) |
| Siena to Kadan | 496.14 mi (798.46 km) |
| Siena to Karlovy Vary | 483.10 mi (777.47 km) |
| Siena to Karvina | 566.18 mi (911.17 km) |
| Siena to Kladno | 489.80 mi (788.26 km) |
| Siena to Klasterec nad Ohri | 495.87 mi (798.03 km) |
| Siena to Klatovy | 430.17 mi (692.30 km) |
| Siena to Kolin | 498.40 mi (802.09 km) |
| Siena to Koprivnice | 541.29 mi (871.12 km) |
| Siena to Kralupy nad Vltavou | 498.56 mi (802.36 km) |
| Siena to Kraluv Dvur | 475.72 mi (765.60 km) |
| Siena to Krnov | 556.28 mi (895.25 km) |
