| Middle River to Robertsville (New Jersey) | 132.36 mi (213.01 km) |
| Middle River to Robinson (Texas) | 1,282.81 mi (2,064.48 km) |
| Middle River to Robstown (Texas) | 1,454.47 mi (2,340.74 km) |
| Middle River to Rochester (Michigan) | 418.31 mi (673.21 km) |
| Middle River to Rochester (Minnesota) | 887.21 mi (1,427.83 km) |
| Middle River to Rochester (New Hampshire) | 392.98 mi (632.44 km) |
| Middle River to Rochester (New York) | 271.38 mi (436.74 km) |
| Middle River to Rochester Hills (Michigan) | 419.11 mi (674.49 km) |
| Middle River to Rock Hill (South Carolina) | 395.68 mi (636.79 km) |
| Middle River to Rock Island (Illinois) | 758.28 mi (1,220.34 km) |
| Middle River to Rock Springs (Wyoming) | 1,720.44 mi (2,768.79 km) |
| Middle River to Rockford (Illinois) | 690.28 mi (1,110.90 km) |
| Middle River to Rockledge (Florida) | 800.53 mi (1,288.33 km) |
| Middle River to Rocklin (California) | 2,379.31 mi (3,829.14 km) |
| Middle River to Rockport (Texas) | 1,415.88 mi (2,278.65 km) |
