| Waltham to Ramsey (New Jersey) | 175.62 mi (282.64 km) |
| Waltham to Rancho Cordova (California) | 2,603.43 mi (4,189.82 km) |
| Waltham to Rancho Cucamonga (California) | 2,544.64 mi (4,095.20 km) |
| Waltham to Rancho Mirage (California) | 2,497.92 mi (4,020.01 km) |
| Waltham to Rancho Palos Verdes (California) | 2,596.92 mi (4,179.33 km) |
| Waltham to Rancho San Diego (California) | 2,555.49 mi (4,112.66 km) |
| Waltham to Rancho Santa Margarita (California) | 2,561.88 mi (4,122.94 km) |
| Waltham to Randallstown (Maryland) | 357.37 mi (575.14 km) |
| Waltham to Rantoul (Illinois) | 887.49 mi (1,428.28 km) |
| Waltham to Rapid City (South Dakota) | 1,603.90 mi (2,581.22 km) |
| Waltham to Ravenna (Ohio) | 521.88 mi (839.89 km) |
| Waltham to Raymondville (Texas) | 1,856.49 mi (2,987.74 km) |
| Waltham to Raymore (Missouri) | 1,238.83 mi (1,993.71 km) |
| Waltham to Raytown (Missouri) | 1,234.89 mi (1,987.36 km) |
| Waltham to Reading (Ohio) | 722.80 mi (1,163.23 km) |
