| Simi Valley to Rosolini | 6,693.31 mi (10,771.83 km) |
| Simi Valley to Rossano | 6,594.40 mi (10,612.66 km) |
| Simi Valley to Rottofreno | 6,072.95 mi (9,773.47 km) |
| Simi Valley to Rovato | 6,060.27 mi (9,753.06 km) |
| Simi Valley to Roverbella | 6,100.08 mi (9,817.14 km) |
| Simi Valley to Rovereto | 6,075.95 mi (9,778.30 km) |
| Simi Valley to Rovigo | 6,141.70 mi (9,884.10 km) |
| Simi Valley to Rozzano | 6,043.25 mi (9,725.67 km) |
| Simi Valley to Rubano | 6,122.42 mi (9,853.09 km) |
| Simi Valley to Rubiera | 6,133.42 mi (9,870.79 km) |
| Simi Valley to Ruffano | 6,620.20 mi (10,654.18 km) |
| Simi Valley to Russi | 6,186.98 mi (9,956.99 km) |
| Simi Valley to Rutigliano | 6,525.74 mi (10,502.16 km) |
| Simi Valley to Ruvo di Puglia | 6,502.80 mi (10,465.25 km) |
| Simi Valley to Sabaudia | 6,384.76 mi (10,275.28 km) |
