| Williamstown to Rosemead (California) | 2,390.48 mi (3,847.11 km) |
| Williamstown to Rosemont (California) | 2,459.20 mi (3,957.70 km) |
| Williamstown to Rosemount (Minnesota) | 986.75 mi (1,588.03 km) |
| Williamstown to Rosenberg (Texas) | 1,371.78 mi (2,207.66 km) |
| Williamstown to Roseville (California) | 2,452.94 mi (3,947.63 km) |
| Williamstown to Roseville (Michigan) | 457.64 mi (736.51 km) |
| Williamstown to Roseville (Minnesota) | 995.70 mi (1,602.43 km) |
| Williamstown to Rossmoor (California) | 2,397.74 mi (3,858.79 km) |
| Williamstown to Rossville (Maryland) | 83.04 mi (133.64 km) |
| Williamstown to Roswell (Georgia) | 648.03 mi (1,042.91 km) |
| Williamstown to Roswell (New Mexico) | 1,689.20 mi (2,718.50 km) |
| Williamstown to Round Lake (Illinois) | 707.73 mi (1,138.98 km) |
| Williamstown to Round Lake Beach (Illinois) | 706.94 mi (1,137.71 km) |
| Williamstown to Round Rock (Texas) | 1,424.40 mi (2,292.36 km) |
| Williamstown to Rowland Heights (California) | 2,382.90 mi (3,834.90 km) |
