| Katy to Robertsville (New Jersey) | 1,413.89 mi (2,275.44 km) |
| Katy to Robinson (Texas) | 137.78 mi (221.74 km) |
| Katy to Robstown (Texas) | 177.08 mi (284.98 km) |
| Katy to Rochester (Michigan) | 1,135.69 mi (1,827.72 km) |
| Katy to Rochester (Minnesota) | 999.96 mi (1,609.27 km) |
| Katy to Rochester (New Hampshire) | 1,655.52 mi (2,664.30 km) |
| Katy to Rochester (New York) | 1,365.07 mi (2,196.87 km) |
| Katy to Rochester Hills (Michigan) | 1,133.31 mi (1,823.89 km) |
| Katy to Rock Hill (South Carolina) | 933.54 mi (1,502.39 km) |
| Katy to Rock Island (Illinois) | 858.73 mi (1,382.00 km) |
| Katy to Rock Springs (Wyoming) | 1,106.08 mi (1,780.06 km) |
| Katy to Rockford (Illinois) | 940.15 mi (1,513.03 km) |
| Katy to Rockledge (Florida) | 916.94 mi (1,475.67 km) |
| Katy to Rocklin (California) | 1,571.87 mi (2,529.68 km) |
| Katy to Rockport (Texas) | 142.86 mi (229.91 km) |
