| Waltham to Cernavoda | 4,649.51 mi (7,482.67 km) |
| Waltham to Chitila | 4,561.80 mi (7,341.51 km) |
| Waltham to Cisnadie | 4,440.66 mi (7,146.54 km) |
| Waltham to Cluj-Napoca | 4,376.73 mi (7,043.67 km) |
| Waltham to Codlea | 4,492.01 mi (7,229.19 km) |
| Waltham to Comanesti | 4,501.15 mi (7,243.90 km) |
| Waltham to Comarnic | 4,517.65 mi (7,270.46 km) |
| Waltham to Constanta | 4,680.19 mi (7,532.04 km) |
| Waltham to Corabia | 4,532.98 mi (7,295.12 km) |
| Waltham to Costesti | 4,511.53 mi (7,260.61 km) |
| Waltham to Covasna | 4,514.66 mi (7,265.64 km) |
| Waltham to Craiova | 4,482.68 mi (7,214.17 km) |
| Waltham to Cristuru Secuiesc | 4,452.08 mi (7,164.93 km) |
| Waltham to Cugir | 4,404.41 mi (7,088.22 km) |
| Waltham to Cumpana | 4,679.47 mi (7,530.88 km) |
