| Simi Valley to Rome (New York) | 2,383.42 mi (3,835.74 km) |
| Simi Valley to Romeoville (Illinois) | 1,735.27 mi (2,792.65 km) |
| Simi Valley to Romulus (Michigan) | 1,981.41 mi (3,188.78 km) |
| Simi Valley to Ronkonkoma (New York) | 2,511.44 mi (4,041.77 km) |
| Simi Valley to Roosevelt (New York) | 2,488.18 mi (4,004.34 km) |
| Simi Valley to Rosamond (California) | 51.35 mi (82.64 km) |
| Simi Valley to Rosaryville (Maryland) | 2,328.18 mi (3,746.84 km) |
| Simi Valley to Roscoe (Illinois) | 1,696.96 mi (2,730.99 km) |
| Simi Valley to Rose Hill (Virginia) | 2,312.93 mi (3,722.30 km) |
| Simi Valley to Roseburg (Oregon) | 666.43 mi (1,072.52 km) |
| Simi Valley to Rosedale (California) | 81.76 mi (131.57 km) |
| Simi Valley to Rosedale (Maryland) | 2,341.65 mi (3,768.51 km) |
| Simi Valley to Roselle (Illinois) | 1,739.04 mi (2,798.72 km) |
| Simi Valley to Roselle (New Jersey) | 2,452.99 mi (3,947.71 km) |
| Simi Valley to Roselle Park (New Jersey) | 2,452.58 mi (3,947.04 km) |
