| Formia to Caguas (Puerto Rico) | 4,867.96 mi (7,834.23 km) |
| Formia to Cahokia (Illinois) | 5,131.89 mi (8,258.98 km) |
| Formia to Calabasas (California) | 6,410.29 mi (10,316.36 km) |
| Formia to Caldwell (Idaho) | 5,807.52 mi (9,346.30 km) |
| Formia to Caledonia (Wisconsin) | 4,852.46 mi (7,809.28 km) |
| Formia to Calera (Alabama) | 5,229.48 mi (8,416.04 km) |
| Formia to Calexico (California) | 6,388.28 mi (10,280.94 km) |
| Formia to Calhoun (Georgia) | 5,089.42 mi (8,190.64 km) |
| Formia to California (Maryland) | 4,556.38 mi (7,332.79 km) |
| Formia to California City (California) | 6,326.52 mi (10,181.55 km) |
| Formia to Callaway (Florida) | 5,309.86 mi (8,545.40 km) |
| Formia to Calumet City (Illinois) | 4,890.49 mi (7,870.48 km) |
| Formia to Calverton (Maryland) | 4,546.73 mi (7,317.25 km) |
| Formia to Camano (Washington) | 5,700.01 mi (9,173.28 km) |
| Formia to Camarillo (California) | 6,416.90 mi (10,327.00 km) |
