| Southborough to Racale | 1,153.07 mi (1,855.69 km) |
| Southborough to Racconigi | 558.78 mi (899.28 km) |
| Southborough to Raffadali | 1,151.11 mi (1,852.54 km) |
| Southborough to Ragusa | 1,213.27 mi (1,952.56 km) |
| Southborough to Ramacca | 1,185.42 mi (1,907.76 km) |
| Southborough to Randazzo | 1,163.71 mi (1,872.81 km) |
| Southborough to Rapallo | 627.52 mi (1,009.89 km) |
| Southborough to Ravanusa | 1,171.38 mi (1,885.16 km) |
| Southborough to Ravenna | 722.42 mi (1,162.63 km) |
| Southborough to Recanati | 819.52 mi (1,318.89 km) |
| Southborough to Recco | 624.07 mi (1,004.34 km) |
| Southborough to Reggello | 736.24 mi (1,184.87 km) |
| Southborough to Reggio di Calabria | 1,171.81 mi (1,885.84 km) |
| Southborough to Reggio Emilia | 654.30 mi (1,053.00 km) |
| Southborough to Reggiolo | 649.77 mi (1,045.71 km) |
