| Waterloo to Romeoville (Illinois) | 4,174.27 mi (6,717.84 km) |
| Waterloo to Romulus (Michigan) | 3,966.86 mi (6,384.04 km) |
| Waterloo to Ronkonkoma (New York) | 3,623.86 mi (5,832.04 km) |
| Waterloo to Roosevelt (New York) | 3,647.95 mi (5,870.81 km) |
| Waterloo to Rosamond (California) | 5,571.86 mi (8,967.04 km) |
| Waterloo to Rosaryville (Maryland) | 3,864.88 mi (6,219.93 km) |
| Waterloo to Roscoe (Illinois) | 4,170.55 mi (6,711.85 km) |
| Waterloo to Rose Hill (Virginia) | 3,875.44 mi (6,236.92 km) |
| Waterloo to Roseburg (Oregon) | 5,227.44 mi (8,412.75 km) |
| Waterloo to Rosedale (California) | 5,571.48 mi (8,966.44 km) |
| Waterloo to Rosedale (Maryland) | 3,826.72 mi (6,158.51 km) |
| Waterloo to Roselle (Illinois) | 4,157.23 mi (6,690.42 km) |
| Waterloo to Roselle (New Jersey) | 3,676.64 mi (5,916.98 km) |
| Waterloo to Roselle Park (New Jersey) | 3,676.36 mi (5,916.53 km) |
| Waterloo to Rosemead (California) | 5,614.08 mi (9,034.99 km) |
