| Formia to Corinth (Mississippi) | 5,224.88 mi (8,408.63 km) |
| Formia to Corinth (Texas) | 5,669.14 mi (9,123.59 km) |
| Formia to Cornelius (North Carolina) | 4,867.13 mi (7,832.89 km) |
| Formia to Cornelius (Oregon) | 5,871.56 mi (9,449.36 km) |
| Formia to Corning (New York) | 4,432.20 mi (7,132.94 km) |
| Formia to Corona (California) | 6,390.55 mi (10,284.60 km) |
| Formia to Coronado (California) | 6,445.31 mi (10,372.73 km) |
| Formia to Corpus Christi (Texas) | 5,947.07 mi (9,570.89 km) |
| Formia to Corsicana (Texas) | 5,695.78 mi (9,166.47 km) |
| Formia to Cortland (New York) | 4,377.56 mi (7,045.01 km) |
| Formia to Corvallis (Oregon) | 5,933.43 mi (9,548.93 km) |
| Formia to Coshocton (Ohio) | 4,711.00 mi (7,581.62 km) |
| Formia to Costa Mesa (California) | 6,412.97 mi (10,320.68 km) |
| Formia to Coto de Caza (California) | 6,406.37 mi (10,310.05 km) |
| Formia to Cottage Grove (Minnesota) | 4,957.90 mi (7,978.98 km) |
