| Simi Valley to Reedley (California) | 165.88 mi (266.96 km) |
| Simi Valley to Reidsville (North Carolina) | 2,193.14 mi (3,529.52 km) |
| Simi Valley to Reisterstown (Maryland) | 2,324.65 mi (3,741.16 km) |
| Simi Valley to Rendon (Texas) | 1,243.80 mi (2,001.71 km) |
| Simi Valley to Reno (Nevada) | 370.06 mi (595.55 km) |
| Simi Valley to Renton (Washington) | 930.17 mi (1,496.96 km) |
| Simi Valley to Republic (Missouri) | 1,429.26 mi (2,300.18 km) |
| Simi Valley to Reston (Virginia) | 2,299.18 mi (3,700.17 km) |
| Simi Valley to Revere (Massachusetts) | 2,612.44 mi (4,204.31 km) |
| Simi Valley to Rexburg (Idaho) | 757.83 mi (1,219.61 km) |
| Simi Valley to Reynoldsburg (Ohio) | 2,005.65 mi (3,227.78 km) |
| Simi Valley to Rialto (California) | 78.39 mi (126.16 km) |
| Simi Valley to Richardson (Texas) | 1,268.76 mi (2,041.88 km) |
| Simi Valley to Richfield (Minnesota) | 1,532.48 mi (2,466.30 km) |
| Simi Valley to Richfield (Wisconsin) | 1,744.96 mi (2,808.24 km) |
