| Castro Valley to Castelfidardo | 6,177.07 mi (9,941.04 km) |
| Castro Valley to Castelfiorentino | 6,096.19 mi (9,810.88 km) |
| Castro Valley to Castelfranco di Sopra | 6,111.90 mi (9,836.15 km) |
| Castro Valley to Castelfranco di Sotto | 6,084.28 mi (9,791.71 km) |
| Castro Valley to Castelfranco Emilia | 6,042.48 mi (9,724.44 km) |
| Castro Valley to Castelfranco Veneto | 6,006.58 mi (9,666.66 km) |
| Castro Valley to Castellabate | 6,400.92 mi (10,301.28 km) |
| Castro Valley to Castellammare del Golfo | 6,469.70 mi (10,411.97 km) |
| Castro Valley to Castellammare di Stabia | 6,363.31 mi (10,240.76 km) |
| Castro Valley to Castellamonte | 5,901.86 mi (9,498.13 km) |
| Castro Valley to Castellana Grotte | 6,426.90 mi (10,343.09 km) |
| Castro Valley to Castellaneta | 6,435.33 mi (10,356.67 km) |
| Castro Valley to Castellanza | 5,923.72 mi (9,533.31 km) |
| Castro Valley to Castellarano | 6,036.49 mi (9,714.79 km) |
| Castro Valley to Castelleone | 5,966.37 mi (9,601.94 km) |
