| Petaluma to Cervignano del Friuli | 6,018.50 mi (9,685.83 km) |
| Petaluma to Cesa | 6,324.97 mi (10,179.05 km) |
| Petaluma to Cesano Maderno | 5,914.81 mi (9,518.97 km) |
| Petaluma to Cesena | 6,086.13 mi (9,794.68 km) |
| Petaluma to Cesenatico | 6,086.76 mi (9,795.69 km) |
| Petaluma to Cetraro | 6,458.86 mi (10,394.53 km) |
| Petaluma to Cherasco | 5,932.39 mi (9,547.26 km) |
| Petaluma to Chiampo | 5,979.03 mi (9,622.31 km) |
| Petaluma to Chiaravalle | 6,147.10 mi (9,892.81 km) |
| Petaluma to Chiari | 5,941.87 mi (9,562.52 km) |
| Petaluma to Chiavari | 5,993.75 mi (9,646.00 km) |
| Petaluma to Chieri | 5,910.96 mi (9,512.77 km) |
| Petaluma to Chieti | 6,242.52 mi (10,046.36 km) |
| Petaluma to Chioggia | 6,025.06 mi (9,696.39 km) |
| Petaluma to Chiusi | 6,142.24 mi (9,884.98 km) |
