| San Luis Obispo to Rheinbach | 5,701.24 mi (9,175.26 km) |
| San Luis Obispo to Rheinberg | 5,643.60 mi (9,082.50 km) |
| San Luis Obispo to Rheine | 5,628.24 mi (9,057.78 km) |
| San Luis Obispo to Rheinfelden (Baden) | 5,887.75 mi (9,475.42 km) |
| San Luis Obispo to Ribnitz-Damgarten | 5,652.60 mi (9,096.98 km) |
| San Luis Obispo to Richterich | 5,666.62 mi (9,119.54 km) |
| San Luis Obispo to Riedlingen | 5,905.40 mi (9,503.82 km) |
| San Luis Obispo to Riegelsberg | 5,771.06 mi (9,287.63 km) |
| San Luis Obispo to Rielasingen-Worblingen | 5,909.57 mi (9,510.54 km) |
| San Luis Obispo to Riesa | 5,836.41 mi (9,392.79 km) |
| San Luis Obispo to Rietberg | 5,681.17 mi (9,142.95 km) |
| San Luis Obispo to Rinteln | 5,677.90 mi (9,137.70 km) |
| San Luis Obispo to Ritterhude | 5,616.20 mi (9,038.41 km) |
| San Luis Obispo to Rodenbach | 5,785.76 mi (9,311.29 km) |
| San Luis Obispo to Rodental | 5,834.48 mi (9,389.69 km) |
