| Gelnhausen to Catania | 925.05 mi (1,488.72 km) |
| Gelnhausen to Catanzaro | 861.25 mi (1,386.04 km) |
| Gelnhausen to Cattolica | 462.07 mi (743.64 km) |
| Gelnhausen to Cava de' Tirreni | 708.57 mi (1,140.33 km) |
| Gelnhausen to Cavallino | 810.67 mi (1,304.65 km) |
| Gelnhausen to Cavarzere | 375.12 mi (603.69 km) |
| Gelnhausen to Cave | 606.57 mi (976.18 km) |
| Gelnhausen to Cavriago | 385.32 mi (620.12 km) |
| Gelnhausen to Cavriglia | 474.50 mi (763.64 km) |
| Gelnhausen to Cazzago San Martino | 321.56 mi (517.50 km) |
| Gelnhausen to Ceccano | 629.01 mi (1,012.29 km) |
| Gelnhausen to Cecina | 479.84 mi (772.23 km) |
| Gelnhausen to Cefalu | 873.90 mi (1,406.40 km) |
| Gelnhausen to Ceglie Messapico | 772.65 mi (1,243.47 km) |
| Gelnhausen to Celano | 598.43 mi (963.09 km) |
