| Diamond Bar to Reichenbach/Vogtland | 5,848.68 mi (9,412.53 km) |
| Diamond Bar to Reinbek | 5,640.04 mi (9,076.77 km) |
| Diamond Bar to Reinfeld | 5,629.52 mi (9,059.83 km) |
| Diamond Bar to Reinheim | 5,789.83 mi (9,317.82 km) |
| Diamond Bar to Reiskirchen | 5,750.22 mi (9,254.08 km) |
| Diamond Bar to Rellingen | 5,621.01 mi (9,046.15 km) |
| Diamond Bar to Remagen | 5,703.70 mi (9,179.22 km) |
| Diamond Bar to Remscheid | 5,672.35 mi (9,128.76 km) |
| Diamond Bar to Rendsburg | 5,583.43 mi (8,985.66 km) |
| Diamond Bar to Renningen | 5,847.49 mi (9,410.62 km) |
| Diamond Bar to Reutlingen | 5,870.64 mi (9,447.89 km) |
| Diamond Bar to Rhaude | 5,582.69 mi (8,984.47 km) |
| Diamond Bar to Rheda-Wiedenbruck | 5,671.23 mi (9,126.97 km) |
| Diamond Bar to Rhede | 5,624.98 mi (9,052.53 km) |
| Diamond Bar to Rheinau | 5,821.90 mi (9,369.44 km) |
