| Grass Valley to Rosolini | 6,484.60 mi (10,435.96 km) |
| Grass Valley to Rossano | 6,372.06 mi (10,254.84 km) |
| Grass Valley to Rottofreno | 5,855.82 mi (9,424.03 km) |
| Grass Valley to Rovato | 5,840.25 mi (9,398.98 km) |
| Grass Valley to Roverbella | 5,878.83 mi (9,461.07 km) |
| Grass Valley to Rovereto | 5,852.00 mi (9,417.89 km) |
| Grass Valley to Rovigo | 5,918.09 mi (9,524.24 km) |
| Grass Valley to Rozzano | 5,826.20 mi (9,376.37 km) |
| Grass Valley to Rubano | 5,897.78 mi (9,491.56 km) |
| Grass Valley to Rubiera | 5,914.04 mi (9,517.72 km) |
| Grass Valley to Ruffano | 6,391.48 mi (10,286.09 km) |
| Grass Valley to Russi | 5,964.82 mi (9,599.45 km) |
| Grass Valley to Rutigliano | 6,298.75 mi (10,136.86 km) |
| Grass Valley to Ruvo di Puglia | 6,276.62 mi (10,101.24 km) |
| Grass Valley to Sabaudia | 6,168.90 mi (9,927.89 km) |
