| Grand Forks to Rockville (Maryland) | 1,165.64 mi (1,875.92 km) |
| Grand Forks to Rockville Centre (New York) | 1,257.09 mi (2,023.09 km) |
| Grand Forks to Rockwall (Texas) | 1,037.27 mi (1,669.32 km) |
| Grand Forks to Rocky Mount (North Carolina) | 1,283.68 mi (2,065.88 km) |
| Grand Forks to Rocky Point (New York) | 1,279.02 mi (2,058.38 km) |
| Grand Forks to Rocky River (Ohio) | 868.73 mi (1,398.08 km) |
| Grand Forks to Roessleville (New York) | 1,182.67 mi (1,903.33 km) |
| Grand Forks to Rogers (Arkansas) | 815.61 mi (1,312.60 km) |
| Grand Forks to Rogers (Minnesota) | 251.98 mi (405.52 km) |
| Grand Forks to Rohnert Park (California) | 1,441.36 mi (2,319.64 km) |
| Grand Forks to Rolla (Missouri) | 739.60 mi (1,190.26 km) |
| Grand Forks to Rolling Meadows (Illinois) | 598.65 mi (963.44 km) |
| Grand Forks to Roma (Texas) | 1,489.46 mi (2,397.06 km) |
| Grand Forks to Rome (Georgia) | 1,125.91 mi (1,811.98 km) |
| Grand Forks to Rome (New York) | 1,089.59 mi (1,753.53 km) |
