| Rancho San Diego to Robertsville (New Jersey) | 2,399.10 mi (3,860.98 km) |
| Rancho San Diego to Robinson (Texas) | 1,160.65 mi (1,867.89 km) |
| Rancho San Diego to Robstown (Texas) | 1,196.81 mi (1,926.09 km) |
| Rancho San Diego to Rochester (Michigan) | 1,954.63 mi (3,145.68 km) |
| Rancho San Diego to Rochester (Minnesota) | 1,526.43 mi (2,456.56 km) |
| Rancho San Diego to Rochester (New Hampshire) | 2,569.03 mi (4,134.46 km) |
| Rancho San Diego to Rochester (New York) | 2,234.98 mi (3,596.86 km) |
| Rancho San Diego to Rochester Hills (Michigan) | 1,952.56 mi (3,142.34 km) |
| Rancho San Diego to Rock Hill (South Carolina) | 2,054.22 mi (3,305.94 km) |
| Rancho San Diego to Rock Island (Illinois) | 1,562.96 mi (2,515.34 km) |
| Rancho San Diego to Rock Springs (Wyoming) | 742.27 mi (1,194.57 km) |
| Rancho San Diego to Rockford (Illinois) | 1,652.07 mi (2,658.76 km) |
| Rancho San Diego to Rockledge (Florida) | 2,164.45 mi (3,483.34 km) |
| Rancho San Diego to Rocklin (California) | 482.89 mi (777.14 km) |
| Rancho San Diego to Rockport (Texas) | 1,225.09 mi (1,971.59 km) |
