| Katy to Reidsville (North Carolina) | 1,037.61 mi (1,669.87 km) |
| Katy to Reisterstown (Maryland) | 1,267.00 mi (2,039.05 km) |
| Katy to Rendon (Texas) | 209.66 mi (337.42 km) |
| Katy to Reno (Nevada) | 1,515.50 mi (2,438.96 km) |
| Katy to Renton (Washington) | 1,859.00 mi (2,991.77 km) |
| Katy to Republic (Missouri) | 526.45 mi (847.24 km) |
| Katy to Reston (Virginia) | 1,226.19 mi (1,973.36 km) |
| Katy to Revere (Massachusetts) | 1,628.48 mi (2,620.79 km) |
| Katy to Rexburg (Idaho) | 1,306.48 mi (2,102.58 km) |
| Katy to Reynoldsburg (Ohio) | 1,017.71 mi (1,637.85 km) |
| Katy to Rialto (California) | 1,295.77 mi (2,085.34 km) |
| Katy to Richardson (Texas) | 225.75 mi (363.32 km) |
| Katy to Richfield (Minnesota) | 1,051.57 mi (1,692.34 km) |
| Katy to Richfield (Wisconsin) | 1,019.20 mi (1,640.24 km) |
| Katy to Richland (Washington) | 1,699.21 mi (2,734.61 km) |
