| Rancho San Diego to Rosemont (California) | 470.80 mi (757.68 km) |
| Rancho San Diego to Rosemount (Minnesota) | 1,520.00 mi (2,446.20 km) |
| Rancho San Diego to Rosenberg (Texas) | 1,264.89 mi (2,035.65 km) |
| Rancho San Diego to Roseville (California) | 482.71 mi (776.84 km) |
| Rancho San Diego to Roseville (Michigan) | 1,961.89 mi (3,157.35 km) |
| Rancho San Diego to Roseville (Minnesota) | 1,523.98 mi (2,452.60 km) |
| Rancho San Diego to Rossmoor (California) | 97.58 mi (157.05 km) |
| Rancho San Diego to Rossville (Maryland) | 2,284.82 mi (3,677.07 km) |
| Rancho San Diego to Roswell (Georgia) | 1,872.77 mi (3,013.92 km) |
| Rancho San Diego to Roswell (New Mexico) | 718.24 mi (1,155.89 km) |
| Rancho San Diego to Round Lake (Illinois) | 1,701.01 mi (2,737.50 km) |
| Rancho San Diego to Round Lake Beach (Illinois) | 1,702.81 mi (2,740.40 km) |
| Rancho San Diego to Round Rock (Texas) | 1,141.48 mi (1,837.03 km) |
| Rancho San Diego to Rowland Heights (California) | 100.61 mi (161.92 km) |
| Rancho San Diego to Rowlett (Texas) | 1,180.77 mi (1,900.26 km) |
