| Mack to Reidsville (North Carolina) | 335.43 mi (539.82 km) |
| Mack to Reisterstown (Maryland) | 420.92 mi (677.41 km) |
| Mack to Rendon (Texas) | 835.62 mi (1,344.80 km) |
| Mack to Reno (Nevada) | 1,867.14 mi (3,004.87 km) |
| Mack to Renton (Washington) | 1,950.37 mi (3,138.82 km) |
| Mack to Republic (Missouri) | 495.75 mi (797.84 km) |
| Mack to Reston (Virginia) | 393.62 mi (633.48 km) |
| Mack to Revere (Massachusetts) | 749.27 mi (1,205.83 km) |
| Mack to Rexburg (Idaho) | 1,433.05 mi (2,306.27 km) |
| Mack to Reynoldsburg (Ohio) | 114.95 mi (184.99 km) |
| Mack to Rialto (California) | 1,836.31 mi (2,955.26 km) |
| Mack to Richardson (Texas) | 794.96 mi (1,279.36 km) |
| Mack to Richfield (Minnesota) | 592.39 mi (953.37 km) |
| Mack to Richfield (Wisconsin) | 337.67 mi (543.43 km) |
| Mack to Richland (Washington) | 1,809.04 mi (2,911.37 km) |
