| San Luis Obispo to Rosolini | 6,699.19 mi (10,781.30 km) |
| San Luis Obispo to Rossano | 6,594.23 mi (10,612.39 km) |
| San Luis Obispo to Rottofreno | 6,074.74 mi (9,776.34 km) |
| San Luis Obispo to Rovato | 6,060.78 mi (9,753.88 km) |
| San Luis Obispo to Roverbella | 6,100.07 mi (9,817.11 km) |
| San Luis Obispo to Rovereto | 6,074.72 mi (9,776.32 km) |
| San Luis Obispo to Rovigo | 6,140.66 mi (9,882.44 km) |
| San Luis Obispo to Rozzano | 6,045.05 mi (9,728.57 km) |
| San Luis Obispo to Rubano | 6,120.92 mi (9,850.66 km) |
| San Luis Obispo to Rubiera | 6,134.26 mi (9,872.13 km) |
| San Luis Obispo to Ruffano | 6,617.17 mi (10,649.31 km) |
| San Luis Obispo to Russi | 6,186.62 mi (9,956.41 km) |
| San Luis Obispo to Rutigliano | 6,523.44 mi (10,498.46 km) |
| San Luis Obispo to Ruvo di Puglia | 6,500.85 mi (10,462.10 km) |
| San Luis Obispo to Sabaudia | 6,387.31 mi (10,279.39 km) |
