| Waterloo to Rosemont (California) | 5,449.06 mi (8,769.42 km) |
| Waterloo to Rosemount (Minnesota) | 4,206.63 mi (6,769.91 km) |
| Waterloo to Rosenberg (Texas) | 5,078.05 mi (8,172.34 km) |
| Waterloo to Roseville (California) | 5,434.96 mi (8,746.73 km) |
| Waterloo to Roseville (Michigan) | 3,937.46 mi (6,336.74 km) |
| Waterloo to Roseville (Minnesota) | 4,196.83 mi (6,754.14 km) |
| Waterloo to Rossmoor (California) | 5,630.31 mi (9,061.10 km) |
| Waterloo to Rossville (Maryland) | 3,824.06 mi (6,154.22 km) |
| Waterloo to Roswell (Georgia) | 4,393.37 mi (7,070.44 km) |
| Waterloo to Roswell (New Mexico) | 5,200.11 mi (8,368.76 km) |
| Waterloo to Round Lake (Illinois) | 4,140.85 mi (6,664.06 km) |
| Waterloo to Round Lake Beach (Illinois) | 4,138.25 mi (6,659.87 km) |
| Waterloo to Round Rock (Texas) | 5,097.71 mi (8,203.97 km) |
| Waterloo to Rowland Heights (California) | 5,613.81 mi (9,034.56 km) |
| Waterloo to Rowlett (Texas) | 4,929.73 mi (7,933.63 km) |
