| Martha Lake to Castrovillari | 5,865.37 mi (9,439.40 km) |
| Martha Lake to Catania | 5,981.18 mi (9,625.78 km) |
| Martha Lake to Catanzaro | 5,931.60 mi (9,545.99 km) |
| Martha Lake to Cattolica | 5,528.70 mi (8,897.58 km) |
| Martha Lake to Cava de' Tirreni | 5,775.08 mi (9,294.10 km) |
| Martha Lake to Cavallino | 5,880.65 mi (9,463.98 km) |
| Martha Lake to Cavarzere | 5,442.43 mi (8,758.75 km) |
| Martha Lake to Cave | 5,663.88 mi (9,115.13 km) |
| Martha Lake to Cavriago | 5,431.07 mi (8,740.46 km) |
| Martha Lake to Cavriglia | 5,525.44 mi (8,892.33 km) |
| Martha Lake to Cazzago San Martino | 5,366.00 mi (8,635.75 km) |
| Martha Lake to Ceccano | 5,688.89 mi (9,155.39 km) |
| Martha Lake to Cecina | 5,513.33 mi (8,872.86 km) |
| Martha Lake to Cefalu | 5,921.47 mi (9,529.68 km) |
| Martha Lake to Ceglie Messapico | 5,843.98 mi (9,404.97 km) |
