| Alcala la Real to Robertsville (New Jersey) | 3,686.62 mi (5,933.03 km) |
| Alcala la Real to Robinson (Texas) | 5,097.33 mi (8,203.36 km) |
| Alcala la Real to Robstown (Texas) | 5,268.81 mi (8,479.33 km) |
| Alcala la Real to Rochester (Michigan) | 4,046.22 mi (6,511.76 km) |
| Alcala la Real to Rochester (Minnesota) | 4,428.66 mi (7,127.24 km) |
| Alcala la Real to Rochester (New Hampshire) | 3,457.72 mi (5,564.66 km) |
| Alcala la Real to Rochester (New York) | 3,776.19 mi (6,077.18 km) |
| Alcala la Real to Rochester Hills (Michigan) | 4,048.53 mi (6,515.48 km) |
| Alcala la Real to Rock Hill (South Carolina) | 4,175.39 mi (6,719.64 km) |
| Alcala la Real to Rock Island (Illinois) | 4,426.80 mi (7,124.25 km) |
| Alcala la Real to Rock Springs (Wyoming) | 5,230.51 mi (8,417.69 km) |
| Alcala la Real to Rockford (Illinois) | 4,332.26 mi (6,972.10 km) |
| Alcala la Real to Rockledge (Florida) | 4,380.22 mi (7,049.29 km) |
| Alcala la Real to Rocklin (California) | 5,833.66 mi (9,388.37 km) |
| Alcala la Real to Rockport (Texas) | 5,229.67 mi (8,416.34 km) |
