| Rancho Cucamonga to Ratingen | 5,641.25 mi (9,078.72 km) |
| Rancho Cucamonga to Ratzeburg | 5,629.26 mi (9,059.42 km) |
| Rancho Cucamonga to Raubling | 5,978.95 mi (9,622.20 km) |
| Rancho Cucamonga to Rauenberg | 5,799.80 mi (9,333.88 km) |
| Rancho Cucamonga to Raunheim | 5,753.89 mi (9,259.98 km) |
| Rancho Cucamonga to Ravensburg | 5,903.97 mi (9,501.52 km) |
| Rancho Cucamonga to Recke | 5,613.01 mi (9,033.27 km) |
| Rancho Cucamonga to Recklinghausen | 5,636.23 mi (9,070.64 km) |
| Rancho Cucamonga to Regen | 5,945.88 mi (9,568.97 km) |
| Rancho Cucamonga to Regensburg | 5,913.02 mi (9,516.08 km) |
| Rancho Cucamonga to Regenstauf | 5,908.64 mi (9,509.04 km) |
| Rancho Cucamonga to Rehau | 5,845.64 mi (9,407.65 km) |
| Rancho Cucamonga to Rehburg-Loccum | 5,651.38 mi (9,095.02 km) |
| Rancho Cucamonga to Rehlingen-Siersburg | 5,732.65 mi (9,225.81 km) |
| Rancho Cucamonga to Reichelsheim | 5,780.99 mi (9,303.60 km) |
