| Canals to Rockville (Maryland) | 3,976.13 mi (6,398.96 km) |
| Canals to Rockville Centre (New York) | 3,760.93 mi (6,052.63 km) |
| Canals to Rockwall (Texas) | 5,114.94 mi (8,231.71 km) |
| Canals to Rocky Mount (North Carolina) | 4,106.46 mi (6,608.71 km) |
| Canals to Rocky Point (New York) | 3,719.78 mi (5,986.41 km) |
| Canals to Rocky River (Ohio) | 4,123.34 mi (6,635.87 km) |
| Canals to Roessleville (New York) | 3,713.01 mi (5,975.51 km) |
| Canals to Rogers (Arkansas) | 4,872.74 mi (7,841.91 km) |
| Canals to Rogers (Minnesota) | 4,513.61 mi (7,263.95 km) |
| Canals to Rohnert Park (California) | 5,957.07 mi (9,586.98 km) |
| Canals to Rolla (Missouri) | 4,700.62 mi (7,564.92 km) |
| Canals to Rolling Meadows (Illinois) | 4,383.30 mi (7,054.23 km) |
| Canals to Roma (Texas) | 5,510.92 mi (8,868.96 km) |
| Canals to Rome (Georgia) | 4,526.47 mi (7,284.66 km) |
| Canals to Rome (New York) | 3,777.80 mi (6,079.79 km) |
