| Waltham to Chicago Ridge (Illinois) | 848.49 mi (1,365.51 km) |
| Waltham to Chickasha (Oklahoma) | 1,519.00 mi (2,444.59 km) |
| Waltham to Chico (California) | 2,601.41 mi (4,186.57 km) |
| Waltham to Chicopee (Massachusetts) | 69.53 mi (111.90 km) |
| Waltham to Chillicothe (Ohio) | 648.54 mi (1,043.72 km) |
| Waltham to Chillum (Maryland) | 382.31 mi (615.26 km) |
| Waltham to Chino (California) | 2,554.10 mi (4,110.43 km) |
| Waltham to Chino Hills (California) | 2,558.20 mi (4,117.02 km) |
| Waltham to Chino Valley (Arizona) | 2,262.16 mi (3,640.60 km) |
| Waltham to Chippewa Falls (Wisconsin) | 1,019.57 mi (1,640.83 km) |
| Waltham to Choctaw (Oklahoma) | 1,470.96 mi (2,367.29 km) |
| Waltham to Chowchilla (California) | 2,591.80 mi (4,171.10 km) |
| Waltham to Christiansburg (Virginia) | 606.23 mi (975.64 km) |
| Waltham to Chubbuck (Idaho) | 2,073.52 mi (3,337.01 km) |
| Waltham to Chula Vista (California) | 2,564.77 mi (4,127.60 km) |
