| Simi Valley to Rockport (Texas) | 1,349.09 mi (2,171.15 km) |
| Simi Valley to Rockville (Maryland) | 2,308.58 mi (3,715.30 km) |
| Simi Valley to Rockville Centre (New York) | 2,485.41 mi (3,999.89 km) |
| Simi Valley to Rockwall (Texas) | 1,284.95 mi (2,067.93 km) |
| Simi Valley to Rocky Mount (North Carolina) | 2,300.04 mi (3,701.55 km) |
| Simi Valley to Rocky Point (New York) | 2,520.50 mi (4,056.36 km) |
| Simi Valley to Rocky River (Ohio) | 2,056.43 mi (3,309.51 km) |
| Simi Valley to Roessleville (New York) | 2,469.57 mi (3,974.39 km) |
| Simi Valley to Rogers (Arkansas) | 1,390.55 mi (2,237.88 km) |
| Simi Valley to Rogers (Minnesota) | 1,526.38 mi (2,456.48 km) |
| Simi Valley to Rohnert Park (California) | 357.46 mi (575.28 km) |
| Simi Valley to Rolla (Missouri) | 1,522.35 mi (2,449.99 km) |
| Simi Valley to Rolling Meadows (Illinois) | 1,743.02 mi (2,805.12 km) |
| Simi Valley to Roma (Texas) | 1,293.12 mi (2,081.08 km) |
| Simi Valley to Rome (Georgia) | 1,907.58 mi (3,069.95 km) |
