| Castro Valley to Imola | 6,075.01 mi (9,776.79 km) |
| Castro Valley to Impruneta | 6,099.67 mi (9,816.47 km) |
| Castro Valley to Induno Olona | 5,908.89 mi (9,509.45 km) |
| Castro Valley to Inverigo | 5,926.40 mi (9,537.62 km) |
| Castro Valley to Inveruno | 5,927.81 mi (9,539.88 km) |
| Castro Valley to Inzago | 5,945.17 mi (9,567.83 km) |
| Castro Valley to Iseo | 5,954.48 mi (9,582.81 km) |
| Castro Valley to Isernia | 6,303.90 mi (10,145.15 km) |
| Castro Valley to Isola Capo Rizzuto | 6,538.67 mi (10,522.97 km) |
| Castro Valley to Isola del Liri | 6,280.54 mi (10,107.56 km) |
| Castro Valley to Isola della Scala | 6,003.39 mi (9,661.52 km) |
| Castro Valley to Isola Vicentina | 5,995.12 mi (9,648.21 km) |
| Castro Valley to Ispica | 6,602.48 mi (10,625.67 km) |
| Castro Valley to Istrana | 6,010.22 mi (9,672.52 km) |
| Castro Valley to Itri | 6,302.21 mi (10,142.42 km) |
