| Castro Valley to Rovinj | 6,086.26 mi (9,794.89 km) |
| Castro Valley to Samobor | 6,099.45 mi (9,816.12 km) |
| Castro Valley to Sesvete | 6,107.94 mi (9,829.78 km) |
| Castro Valley to Sibenik | 6,224.90 mi (10,018.00 km) |
| Castro Valley to Sinj | 6,246.46 mi (10,052.71 km) |
| Castro Valley to Sisak | 6,134.63 mi (9,872.73 km) |
| Castro Valley to Slatina | 6,155.11 mi (9,905.69 km) |
| Castro Valley to Slavonski Brod | 6,194.74 mi (9,969.48 km) |
| Castro Valley to Solin | 6,252.75 mi (10,062.83 km) |
| Castro Valley to Split | 6,252.59 mi (10,062.57 km) |
| Castro Valley to Sveti Ivan Zelina | 6,103.49 mi (9,822.62 km) |
| Castro Valley to Trilj | 6,253.55 mi (10,064.11 km) |
| Castro Valley to Trogir | 6,247.22 mi (10,053.93 km) |
| Castro Valley to Umag | 6,062.98 mi (9,757.43 km) |
| Castro Valley to Valpovo | 6,174.75 mi (9,937.29 km) |
