| Mattoon to Cividale del Friuli | 4,808.36 mi (7,738.31 km) |
| Mattoon to Civita Castellana | 4,924.15 mi (7,924.66 km) |
| Mattoon to Civitanova Marche | 4,935.96 mi (7,943.65 km) |
| Mattoon to Civitavecchia | 4,907.20 mi (7,897.38 km) |
| Mattoon to Civitella in Val di Chiana | 4,849.89 mi (7,805.15 km) |
| Mattoon to Clusone | 4,680.61 mi (7,532.71 km) |
| Mattoon to Coccaglio | 4,694.24 mi (7,554.65 km) |
| Mattoon to Codigoro | 4,808.38 mi (7,738.33 km) |
| Mattoon to Codogno | 4,699.09 mi (7,562.45 km) |
| Mattoon to Codroipo | 4,796.39 mi (7,719.04 km) |
| Mattoon to Cogoleto | 4,686.23 mi (7,541.76 km) |
| Mattoon to Colle di Val d'Elsa | 4,826.87 mi (7,768.10 km) |
| Mattoon to Colle Salvetti | 4,792.34 mi (7,712.53 km) |
| Mattoon to Collecchio | 4,735.78 mi (7,621.51 km) |
| Mattoon to Colleferro | 4,972.43 mi (8,002.36 km) |
