| Willoughby to Rosemead (California) | 2,051.25 mi (3,301.17 km) |
| Willoughby to Rosemont (California) | 2,103.23 mi (3,384.82 km) |
| Willoughby to Rosemount (Minnesota) | 624.37 mi (1,004.82 km) |
| Willoughby to Rosenberg (Texas) | 1,160.77 mi (1,868.09 km) |
| Willoughby to Roseville (California) | 2,096.51 mi (3,374.01 km) |
| Willoughby to Roseville (Michigan) | 98.42 mi (158.40 km) |
| Willoughby to Roseville (Minnesota) | 633.85 mi (1,020.08 km) |
| Willoughby to Rossmoor (California) | 2,059.61 mi (3,314.62 km) |
| Willoughby to Rossville (Maryland) | 303.47 mi (488.39 km) |
| Willoughby to Roswell (Georgia) | 549.46 mi (884.27 km) |
| Willoughby to Roswell (New Mexico) | 1,384.45 mi (2,228.06 km) |
| Willoughby to Round Lake (Illinois) | 347.19 mi (558.74 km) |
| Willoughby to Round Lake Beach (Illinois) | 346.18 mi (557.13 km) |
| Willoughby to Round Rock (Texas) | 1,185.49 mi (1,907.87 km) |
| Willoughby to Rowland Heights (California) | 2,044.32 mi (3,290.01 km) |
