| Simi Valley to Rosemead (California) | 40.48 mi (65.15 km) |
| Simi Valley to Rosemont (California) | 329.38 mi (530.08 km) |
| Simi Valley to Rosemount (Minnesota) | 1,539.52 mi (2,477.62 km) |
| Simi Valley to Rosenberg (Texas) | 1,380.48 mi (2,221.67 km) |
| Simi Valley to Roseville (California) | 342.33 mi (550.92 km) |
| Simi Valley to Roseville (Michigan) | 2,004.75 mi (3,226.33 km) |
| Simi Valley to Roseville (Minnesota) | 1,541.65 mi (2,481.05 km) |
| Simi Valley to Rossmoor (California) | 50.55 mi (81.35 km) |
| Simi Valley to Rossville (Maryland) | 2,343.15 mi (3,770.94 km) |
| Simi Valley to Roswell (Georgia) | 1,957.31 mi (3,149.99 km) |
| Simi Valley to Roswell (New Mexico) | 817.90 mi (1,316.28 km) |
| Simi Valley to Round Lake (Illinois) | 1,741.56 mi (2,802.78 km) |
| Simi Valley to Round Lake Beach (Illinois) | 1,743.18 mi (2,805.38 km) |
| Simi Valley to Round Rock (Texas) | 1,254.48 mi (2,018.88 km) |
| Simi Valley to Rowland Heights (California) | 53.12 mi (85.49 km) |
