| Mack to River Ridge (Louisiana) | 708.55 mi (1,140.30 km) |
| Mack to Riverbank (California) | 1,951.97 mi (3,141.40 km) |
| Mack to Riverdale (Georgia) | 386.20 mi (621.52 km) |
| Mack to Riverdale (Illinois) | 232.19 mi (373.68 km) |
| Mack to Riverside (California) | 1,840.99 mi (2,962.79 km) |
| Mack to Riverside (Ohio) | 52.96 mi (85.23 km) |
| Mack to Riverton (Utah) | 1,444.94 mi (2,325.40 km) |
| Mack to Riverton (Wyoming) | 1,260.27 mi (2,028.22 km) |
| Mack to Riverview (Florida) | 794.39 mi (1,278.45 km) |
| Mack to Riverview (Michigan) | 222.89 mi (358.71 km) |
| Mack to Riviera Beach (Florida) | 894.91 mi (1,440.22 km) |
| Mack to Riviera Beach (Maryland) | 436.71 mi (702.81 km) |
| Mack to Roanoke (Virginia) | 287.00 mi (461.88 km) |
| Mack to Roanoke Rapids (North Carolina) | 426.72 mi (686.74 km) |
| Mack to Robbinsdale (Minnesota) | 600.84 mi (966.96 km) |
