| Castro Valley to Rothenbach an der Pegnitz | 5,772.30 mi (9,289.62 km) |
| Castro Valley to Rothenburg ob der Tauber | 5,750.03 mi (9,253.79 km) |
| Castro Valley to Rottweil | 5,775.05 mi (9,294.05 km) |
| Castro Valley to Rudersberg | 5,760.17 mi (9,270.10 km) |
| Castro Valley to Rudesheim am Rhein | 5,656.38 mi (9,103.06 km) |
| Castro Valley to Rudolstadt | 5,704.98 mi (9,181.27 km) |
| Castro Valley to Runkel | 5,639.37 mi (9,075.70 km) |
| Castro Valley to Ruppichteroth | 5,597.41 mi (9,008.17 km) |
| Castro Valley to Russelsheim | 5,668.78 mi (9,123.02 km) |
| Castro Valley to Rutesheim | 5,748.51 mi (9,251.33 km) |
| Castro Valley to Ruthen | 5,588.51 mi (8,993.83 km) |
| Castro Valley to Saalfeld | 5,709.74 mi (9,188.93 km) |
| Castro Valley to Saarbrucken | 5,671.51 mi (9,127.42 km) |
| Castro Valley to Saarlouis | 5,659.99 mi (9,108.88 km) |
| Castro Valley to Saarwellingen | 5,659.51 mi (9,108.10 km) |
