| Niederkassel to Rovinj | 499.79 mi (804.34 km) |
| Niederkassel to Samobor | 527.95 mi (849.65 km) |
| Niederkassel to Sesvete | 540.44 mi (869.75 km) |
| Niederkassel to Sibenik | 640.81 mi (1,031.28 km) |
| Niederkassel to Sinj | 665.59 mi (1,071.16 km) |
| Niederkassel to Sisak | 565.87 mi (910.68 km) |
| Niederkassel to Slatina | 603.76 mi (971.66 km) |
| Niederkassel to Slavonski Brod | 639.46 mi (1,029.11 km) |
| Niederkassel to Solin | 670.37 mi (1,078.85 km) |
| Niederkassel to Split | 669.86 mi (1,078.04 km) |
| Niederkassel to Sveti Ivan Zelina | 538.95 mi (867.36 km) |
| Niederkassel to Trilj | 672.69 mi (1,082.58 km) |
| Niederkassel to Trogir | 663.72 mi (1,068.16 km) |
| Niederkassel to Umag | 476.86 mi (767.44 km) |
| Niederkassel to Valpovo | 632.15 mi (1,017.34 km) |
