| Rancho Santa Margarita to Rosolini | 6,689.95 mi (10,766.44 km) |
| Rancho Santa Margarita to Rossano | 6,594.81 mi (10,613.32 km) |
| Rancho Santa Margarita to Rottofreno | 6,072.44 mi (9,772.65 km) |
| Rancho Santa Margarita to Rovato | 6,060.55 mi (9,753.51 km) |
| Rancho Santa Margarita to Roverbella | 6,100.66 mi (9,818.06 km) |
| Rancho Santa Margarita to Rovereto | 6,077.29 mi (9,780.45 km) |
| Rancho Santa Margarita to Rovigo | 6,142.88 mi (9,886.00 km) |
| Rancho Santa Margarita to Rozzano | 6,042.74 mi (9,724.85 km) |
| Rancho Santa Margarita to Rubano | 6,123.91 mi (9,855.48 km) |
| Rancho Santa Margarita to Rubiera | 6,133.46 mi (9,870.85 km) |
| Rancho Santa Margarita to Ruffano | 6,622.35 mi (10,657.64 km) |
| Rancho Santa Margarita to Russi | 6,187.73 mi (9,958.19 km) |
| Rancho Santa Margarita to Rutigliano | 6,527.50 mi (10,504.99 km) |
| Rancho Santa Margarita to Ruvo di Puglia | 6,504.36 mi (10,467.75 km) |
| Rancho Santa Margarita to Sabaudia | 6,383.61 mi (10,273.43 km) |
