| Fountain Valley to Rosolini | 6,697.58 mi (10,778.72 km) |
| Fountain Valley to Rossano | 6,601.50 mi (10,624.08 km) |
| Fountain Valley to Rottofreno | 6,079.34 mi (9,783.75 km) |
| Fountain Valley to Rovato | 6,067.25 mi (9,764.30 km) |
| Fountain Valley to Roverbella | 6,107.29 mi (9,828.73 km) |
| Fountain Valley to Rovereto | 6,083.72 mi (9,790.80 km) |
| Fountain Valley to Rovigo | 6,149.35 mi (9,896.43 km) |
| Fountain Valley to Rozzano | 6,049.64 mi (9,735.95 km) |
| Fountain Valley to Rubano | 6,130.31 mi (9,865.78 km) |
| Fountain Valley to Rubiera | 6,140.23 mi (9,881.74 km) |
| Fountain Valley to Ruffano | 6,628.60 mi (10,667.70 km) |
| Fountain Valley to Russi | 6,194.32 mi (9,968.79 km) |
| Fountain Valley to Rutigliano | 6,533.84 mi (10,515.20 km) |
| Fountain Valley to Ruvo di Puglia | 6,510.75 mi (10,478.04 km) |
| Fountain Valley to Sabaudia | 6,390.68 mi (10,284.81 km) |
