| Waltham to Castrovillari | 4,339.48 mi (6,983.72 km) |
| Waltham to Catania | 4,379.97 mi (7,048.88 km) |
| Waltham to Catanzaro | 4,392.77 mi (7,069.48 km) |
| Waltham to Cattolica | 4,035.82 mi (6,495.02 km) |
| Waltham to Cava de' Tirreni | 4,239.85 mi (6,823.39 km) |
| Waltham to Cavallino | 4,407.43 mi (7,093.07 km) |
| Waltham to Cavarzere | 3,967.65 mi (6,385.31 km) |
| Waltham to Cave | 4,121.07 mi (6,632.23 km) |
| Waltham to Cavriago | 3,916.28 mi (6,302.64 km) |
| Waltham to Cavriglia | 3,997.59 mi (6,433.50 km) |
| Waltham to Cazzago San Martino | 3,865.40 mi (6,220.76 km) |
| Waltham to Ceccano | 4,147.71 mi (6,675.10 km) |
| Waltham to Cecina | 3,962.44 mi (6,376.92 km) |
| Waltham to Cefalu | 4,310.76 mi (6,937.49 km) |
| Waltham to Ceglie Messapico | 4,364.06 mi (7,023.28 km) |
