| Diamond Bar to Rhondda | 5,317.23 mi (8,557.26 km) |
| Diamond Bar to Rhosllanerchrugog | 5,268.28 mi (8,478.48 km) |
| Diamond Bar to Rhyl | 5,241.03 mi (8,434.62 km) |
| Diamond Bar to Rhymney | 5,315.44 mi (8,554.38 km) |
| Diamond Bar to Richmond | 5,426.54 mi (8,733.17 km) |
| Diamond Bar to Rickmansworth | 5,412.90 mi (8,711.22 km) |
| Diamond Bar to Ripley | 5,319.10 mi (8,560.26 km) |
| Diamond Bar to Ripon | 5,266.90 mi (8,476.26 km) |
| Diamond Bar to Risca | 5,328.42 mi (8,575.26 km) |
| Diamond Bar to Rochdale | 5,270.23 mi (8,481.61 km) |
| Diamond Bar to Rochester | 5,456.04 mi (8,780.65 km) |
| Diamond Bar to Rock Ferry | 5,253.90 mi (8,455.33 km) |
| Diamond Bar to Rogerstone | 5,330.42 mi (8,578.48 km) |
| Diamond Bar to Romford | 5,436.48 mi (8,749.17 km) |
| Diamond Bar to Romsey | 5,408.67 mi (8,704.41 km) |
