| Petaluma to Ratingen | 5,538.61 mi (8,913.52 km) |
| Petaluma to Ratzeburg | 5,503.83 mi (8,857.55 km) |
| Petaluma to Raubling | 5,873.22 mi (9,452.03 km) |
| Petaluma to Rauenberg | 5,699.90 mi (9,173.10 km) |
| Petaluma to Raunheim | 5,651.60 mi (9,095.38 km) |
| Petaluma to Ravensburg | 5,807.24 mi (9,345.85 km) |
| Petaluma to Recke | 5,502.83 mi (8,855.95 km) |
| Petaluma to Recklinghausen | 5,531.31 mi (8,901.78 km) |
| Petaluma to Regen | 5,831.71 mi (9,385.23 km) |
| Petaluma to Regensburg | 5,802.38 mi (9,338.02 km) |
| Petaluma to Regenstauf | 5,797.40 mi (9,330.02 km) |
| Petaluma to Rehau | 5,730.23 mi (9,221.91 km) |
| Petaluma to Rehburg-Loccum | 5,536.10 mi (8,909.50 km) |
| Petaluma to Rehlingen-Siersburg | 5,639.21 mi (9,075.43 km) |
| Petaluma to Reichelsheim | 5,678.69 mi (9,138.97 km) |
