| Waltham to Crawfordsville (Indiana) | 828.40 mi (1,333.17 km) |
| Waltham to Crest Hill (Illinois) | 866.89 mi (1,395.12 km) |
| Waltham to Crestview (Florida) | 1,167.50 mi (1,878.90 km) |
| Waltham to Crestwood (Illinois) | 847.08 mi (1,363.24 km) |
| Waltham to Crestwood (Missouri) | 1,037.56 mi (1,669.79 km) |
| Waltham to Creve Coeur (Missouri) | 1,038.27 mi (1,670.93 km) |
| Waltham to Crofton (Maryland) | 367.95 mi (592.16 km) |
| Waltham to Crossville (Tennessee) | 860.47 mi (1,384.79 km) |
| Waltham to Crowley (Louisiana) | 1,439.67 mi (2,316.93 km) |
| Waltham to Crowley (Texas) | 1,575.63 mi (2,535.74 km) |
| Waltham to Crown Point (Indiana) | 829.61 mi (1,335.13 km) |
| Waltham to Crystal (Minnesota) | 1,116.02 mi (1,796.06 km) |
| Waltham to Crystal Lake (Illinois) | 871.94 mi (1,403.25 km) |
| Waltham to Cudahy (California) | 2,581.13 mi (4,153.93 km) |
| Waltham to Cudahy (Wisconsin) | 843.96 mi (1,358.22 km) |
