| Southborough to Ratingen | 284.97 mi (458.61 km) |
| Southborough to Ratzeburg | 474.74 mi (764.01 km) |
| Southborough to Raubling | 579.50 mi (932.61 km) |
| Southborough to Rauenberg | 395.06 mi (635.80 km) |
| Southborough to Raunheim | 367.41 mi (591.30 km) |
| Southborough to Ravensburg | 479.62 mi (771.88 km) |
| Southborough to Recke | 329.35 mi (530.03 km) |
| Southborough to Recklinghausen | 298.80 mi (480.88 km) |
| Southborough to Regen | 589.66 mi (948.97 km) |
| Southborough to Regensburg | 543.75 mi (875.08 km) |
| Southborough to Regenstauf | 543.15 mi (874.12 km) |
| Southborough to Rehau | 517.48 mi (832.81 km) |
| Southborough to Rehburg-Loccum | 392.05 mi (630.94 km) |
| Southborough to Rehlingen-Siersburg | 308.98 mi (497.26 km) |
| Southborough to Reichelsheim | 390.06 mi (627.74 km) |
