| Petaluma to Racale | 6,489.32 mi (10,443.56 km) |
| Petaluma to Racconigi | 5,920.54 mi (9,528.19 km) |
| Petaluma to Raffadali | 6,511.63 mi (10,479.46 km) |
| Petaluma to Ragusa | 6,575.10 mi (10,581.61 km) |
| Petaluma to Ramacca | 6,547.44 mi (10,537.08 km) |
| Petaluma to Randazzo | 6,525.49 mi (10,501.76 km) |
| Petaluma to Rapallo | 5,988.99 mi (9,638.34 km) |
| Petaluma to Ravanusa | 6,532.58 mi (10,513.18 km) |
| Petaluma to Ravenna | 6,069.05 mi (9,767.19 km) |
| Petaluma to Recanati | 6,164.61 mi (9,920.98 km) |
| Petaluma to Recco | 5,985.64 mi (9,632.96 km) |
| Petaluma to Reggello | 6,092.37 mi (9,804.72 km) |
| Petaluma to Reggio di Calabria | 6,532.05 mi (10,512.32 km) |
| Petaluma to Reggio Emilia | 6,009.23 mi (9,670.93 km) |
| Petaluma to Reggiolo | 6,002.09 mi (9,659.44 km) |
