| Waltham to Camarillo (California) | 2,616.21 mi (4,210.39 km) |
| Waltham to Camas (Washington) | 2,510.56 mi (4,040.36 km) |
| Waltham to Cambridge (Maryland) | 367.19 mi (590.94 km) |
| Waltham to Cambridge (Massachusetts) | 6.38 mi (10.27 km) |
| Waltham to Camden (Arkansas) | 1,319.84 mi (2,124.07 km) |
| Waltham to Camden (New Jersey) | 262.89 mi (423.08 km) |
| Waltham to Cameron Park (California) | 2,587.55 mi (4,164.26 km) |
| Waltham to Camp Pendleton South (California) | 2,564.23 mi (4,126.73 km) |
| Waltham to Camp Springs (Maryland) | 387.18 mi (623.11 km) |
| Waltham to Camp Verde (Arizona) | 2,239.58 mi (3,604.25 km) |
| Waltham to Campbell (California) | 2,673.59 mi (4,302.73 km) |
| Waltham to Campbellsville (Kentucky) | 824.02 mi (1,326.14 km) |
| Waltham to Campton Hills (Illinois) | 878.51 mi (1,413.83 km) |
| Waltham to Canby (Oregon) | 2,528.24 mi (4,068.81 km) |
| Waltham to Candelaria (Puerto Rico) | 1,683.22 mi (2,708.88 km) |
