| Tamalpais-Homestead Valley to Rosolini | 6,606.35 mi (10,631.89 km) |
| Tamalpais-Homestead Valley to Rossano | 6,492.97 mi (10,449.42 km) |
| Tamalpais-Homestead Valley to Rottofreno | 5,977.19 mi (9,619.36 km) |
| Tamalpais-Homestead Valley to Rovato | 5,961.44 mi (9,594.00 km) |
| Tamalpais-Homestead Valley to Roverbella | 5,999.92 mi (9,655.94 km) |
| Tamalpais-Homestead Valley to Rovereto | 5,972.90 mi (9,612.46 km) |
| Tamalpais-Homestead Valley to Rovigo | 6,039.00 mi (9,718.83 km) |
| Tamalpais-Homestead Valley to Rozzano | 5,947.59 mi (9,571.71 km) |
| Tamalpais-Homestead Valley to Rubano | 6,018.62 mi (9,686.04 km) |
| Tamalpais-Homestead Valley to Rubiera | 6,035.25 mi (9,712.79 km) |
| Tamalpais-Homestead Valley to Ruffano | 6,511.88 mi (10,479.85 km) |
| Tamalpais-Homestead Valley to Russi | 6,085.83 mi (9,794.19 km) |
| Tamalpais-Homestead Valley to Rutigliano | 6,419.31 mi (10,330.89 km) |
| Tamalpais-Homestead Valley to Ruvo di Puglia | 6,397.25 mi (10,295.38 km) |
| Tamalpais-Homestead Valley to Sabaudia | 6,290.29 mi (10,123.25 km) |
