| Callaway to Reidsville (North Carolina) | 546.83 mi (880.03 km) |
| Callaway to Reisterstown (Maryland) | 811.95 mi (1,306.71 km) |
| Callaway to Rendon (Texas) | 709.00 mi (1,141.02 km) |
| Callaway to Reno (Nevada) | 2,036.14 mi (3,276.86 km) |
| Callaway to Renton (Washington) | 2,277.22 mi (3,664.82 km) |
| Callaway to Republic (Missouri) | 663.16 mi (1,067.25 km) |
| Callaway to Reston (Virginia) | 766.90 mi (1,234.20 km) |
| Callaway to Revere (Massachusetts) | 1,170.30 mi (1,883.41 km) |
| Callaway to Rexburg (Idaho) | 1,717.80 mi (2,764.53 km) |
| Callaway to Reynoldsburg (Ohio) | 696.41 mi (1,120.77 km) |
| Callaway to Rialto (California) | 1,875.18 mi (3,017.82 km) |
| Callaway to Richardson (Texas) | 684.86 mi (1,102.17 km) |
| Callaway to Richfield (Minnesota) | 1,101.77 mi (1,773.12 km) |
| Callaway to Richfield (Wisconsin) | 917.28 mi (1,476.22 km) |
| Callaway to Richland (Washington) | 2,120.85 mi (3,413.17 km) |
