| Cities | Distance |
|---|---|
| Opatija to Kikinda | 299.32 mi (481.70 km) |
| Opatija to Kladovo | 409.01 mi (658.24 km) |
| Opatija to Knic | 330.27 mi (531.51 km) |
| Opatija to Knjazevac | 420.68 mi (677.02 km) |
| Opatija to Koceljeva | 275.96 mi (444.12 km) |
| Opatija to Kosjeric | 290.90 mi (468.15 km) |
| Opatija to Kovacica | 307.94 mi (495.58 km) |
| Opatija to Kovin | 327.86 mi (527.64 km) |
| Opatija to Kragujevac | 338.60 mi (544.92 km) |
| Opatija to Kraljevo | 333.58 mi (536.84 km) |
| Opatija to Krupanj | 256.97 mi (413.55 km) |
| Opatija to Krusevac | 366.87 mi (590.42 km) |
| Opatija to Kucevo | 365.10 mi (587.58 km) |
| Opatija to Kula | 254.21 mi (409.11 km) |
| Opatija to Kursumlija | 376.55 mi (606.01 km) |