| Petaluma to Rosolini | 6,587.90 mi (10,602.20 km) |
| Petaluma to Rossano | 6,473.74 mi (10,418.48 km) |
| Petaluma to Rottofreno | 5,958.37 mi (9,589.06 km) |
| Petaluma to Rovato | 5,942.45 mi (9,563.44 km) |
| Petaluma to Roverbella | 5,980.85 mi (9,625.25 km) |
| Petaluma to Rovereto | 5,953.68 mi (9,581.52 km) |
| Petaluma to Rovigo | 6,019.79 mi (9,687.91 km) |
| Petaluma to Rozzano | 5,928.77 mi (9,541.44 km) |
| Petaluma to Rubano | 5,999.35 mi (9,655.02 km) |
| Petaluma to Rubiera | 6,016.28 mi (9,682.27 km) |
| Petaluma to Ruffano | 6,492.28 mi (10,448.31 km) |
| Petaluma to Russi | 6,066.69 mi (9,763.39 km) |
| Petaluma to Rutigliano | 6,399.83 mi (10,299.54 km) |
| Petaluma to Ruvo di Puglia | 6,377.82 mi (10,264.11 km) |
| Petaluma to Sabaudia | 6,271.48 mi (10,092.98 km) |
