| Opoczno to Jicin | 224.58 mi (361.42 km) |
| Opoczno to Jihlava | 247.83 mi (398.85 km) |
| Opoczno to Jindrichuv Hradec | 279.67 mi (450.09 km) |
| Opoczno to Jirkov | 303.76 mi (488.85 km) |
| Opoczno to Kadan | 313.45 mi (504.45 km) |
| Opoczno to Karlovy Vary | 333.14 mi (536.14 km) |
| Opoczno to Karvina | 130.07 mi (209.32 km) |
| Opoczno to Kladno | 283.27 mi (455.87 km) |
| Opoczno to Klasterec nad Ohri | 317.54 mi (511.03 km) |
| Opoczno to Klatovy | 336.90 mi (542.19 km) |
| Opoczno to Kolin | 241.24 mi (388.24 km) |
| Opoczno to Koprivnice | 154.76 mi (249.05 km) |
| Opoczno to Kralupy nad Vltavou | 272.35 mi (438.30 km) |
| Opoczno to Kraluv Dvur | 290.94 mi (468.22 km) |
| Opoczno to Krnov | 143.91 mi (231.60 km) |
