| Walnut Creek to Ratingen | 5,543.36 mi (8,921.17 km) |
| Walnut Creek to Ratzeburg | 5,510.90 mi (8,868.94 km) |
| Walnut Creek to Raubling | 5,878.43 mi (9,460.42 km) |
| Walnut Creek to Rauenberg | 5,704.45 mi (9,180.42 km) |
| Walnut Creek to Raunheim | 5,656.37 mi (9,103.05 km) |
| Walnut Creek to Ravensburg | 5,811.51 mi (9,352.73 km) |
| Walnut Creek to Recke | 5,508.34 mi (8,864.81 km) |
| Walnut Creek to Recklinghausen | 5,536.29 mi (8,909.80 km) |
| Walnut Creek to Regen | 5,837.77 mi (9,394.98 km) |
| Walnut Creek to Regensburg | 5,808.06 mi (9,347.17 km) |
| Walnut Creek to Regenstauf | 5,803.15 mi (9,339.27 km) |
| Walnut Creek to Rehau | 5,736.37 mi (9,231.79 km) |
| Walnut Creek to Rehburg-Loccum | 5,542.15 mi (8,919.22 km) |
| Walnut Creek to Rehlingen-Siersburg | 5,643.07 mi (9,081.65 km) |
| Walnut Creek to Reichelsheim | 5,683.47 mi (9,146.66 km) |
