| Mack to Robertsville (New Jersey) | 557.50 mi (897.21 km) |
| Mack to Robinson (Texas) | 878.99 mi (1,414.59 km) |
| Mack to Robstown (Texas) | 1,082.16 mi (1,741.56 km) |
| Mack to Rochester (Michigan) | 257.60 mi (414.57 km) |
| Mack to Rochester (Minnesota) | 524.46 mi (844.03 km) |
| Mack to Rochester (New Hampshire) | 766.40 mi (1,233.39 km) |
| Mack to Rochester (New York) | 460.27 mi (740.73 km) |
| Mack to Rochester Hills (Michigan) | 255.56 mi (411.29 km) |
| Mack to Rock Hill (South Carolina) | 353.70 mi (569.22 km) |
| Mack to Rock Island (Illinois) | 349.82 mi (562.98 km) |
| Mack to Rock Springs (Wyoming) | 1,298.39 mi (2,089.55 km) |
| Mack to Rockford (Illinois) | 314.45 mi (506.05 km) |
| Mack to Rockledge (Florida) | 781.53 mi (1,257.75 km) |
| Mack to Rocklin (California) | 1,950.86 mi (3,139.61 km) |
| Mack to Rockport (Texas) | 1,046.32 mi (1,683.89 km) |
