| Castro Valley to Argostoli | 6,677.54 mi (10,746.47 km) |
| Castro Valley to Argyroupoli | 6,777.13 mi (10,906.74 km) |
| Castro Valley to Arta | 6,630.48 mi (10,670.72 km) |
| Castro Valley to Artemida | 6,779.11 mi (10,909.92 km) |
| Castro Valley to Aspropyrgos | 6,762.76 mi (10,883.61 km) |
| Castro Valley to Athens | 6,771.40 mi (10,897.51 km) |
| Castro Valley to Chaidari | 6,767.48 mi (10,891.20 km) |
| Castro Valley to Chalandri | 6,771.15 mi (10,897.11 km) |
| Castro Valley to Chalkida | 6,738.63 mi (10,844.78 km) |
| Castro Valley to Chania | 6,930.91 mi (11,154.23 km) |
| Castro Valley to Chios | 6,804.22 mi (10,950.34 km) |
| Castro Valley to Cholargos | 6,772.18 mi (10,898.77 km) |
| Castro Valley to Chrysoupoli | 6,608.49 mi (10,635.33 km) |
| Castro Valley to Dafni | 6,773.63 mi (10,901.11 km) |
| Castro Valley to Diavata | 6,583.77 mi (10,595.55 km) |
