| San Luis Obispo to Ratingen | 5,663.52 mi (9,114.55 km) |
| San Luis Obispo to Ratzeburg | 5,640.11 mi (9,076.88 km) |
| San Luis Obispo to Raubling | 6,000.10 mi (9,656.22 km) |
| San Luis Obispo to Rauenberg | 5,823.62 mi (9,372.21 km) |
| San Luis Obispo to Raunheim | 5,776.47 mi (9,296.33 km) |
| San Luis Obispo to Ravensburg | 5,929.48 mi (9,542.57 km) |
| San Luis Obispo to Recke | 5,631.50 mi (9,063.03 km) |
| San Luis Obispo to Recklinghausen | 5,657.36 mi (9,104.65 km) |
| San Luis Obispo to Regen | 5,962.78 mi (9,596.16 km) |
| San Luis Obispo to Regensburg | 5,931.64 mi (9,546.05 km) |
| San Luis Obispo to Regenstauf | 5,926.96 mi (9,538.52 km) |
| San Luis Obispo to Rehau | 5,861.79 mi (9,433.64 km) |
| San Luis Obispo to Rehburg-Loccum | 5,667.37 mi (9,120.75 km) |
| San Luis Obispo to Rehlingen-Siersburg | 5,759.56 mi (9,269.12 km) |
| San Luis Obispo to Reichelsheim | 5,803.59 mi (9,339.98 km) |
