| Houghton Regis to Ratingen | 319.08 mi (513.52 km) |
| Houghton Regis to Ratzeburg | 486.46 mi (782.88 km) |
| Houghton Regis to Raubling | 629.31 mi (1,012.78 km) |
| Houghton Regis to Rauenberg | 443.50 mi (713.75 km) |
| Houghton Regis to Raunheim | 411.44 mi (662.15 km) |
| Houghton Regis to Ravensburg | 533.17 mi (858.05 km) |
| Houghton Regis to Recke | 350.88 mi (564.69 km) |
| Houghton Regis to Recklinghausen | 329.42 mi (530.15 km) |
| Houghton Regis to Regen | 633.27 mi (1,019.15 km) |
| Houghton Regis to Regensburg | 588.43 mi (946.99 km) |
| Houghton Regis to Regenstauf | 587.26 mi (945.10 km) |
| Houghton Regis to Rehau | 555.53 mi (894.04 km) |
| Houghton Regis to Rehburg-Loccum | 413.77 mi (665.90 km) |
| Houghton Regis to Rehlingen-Siersburg | 360.78 mi (580.62 km) |
| Houghton Regis to Reichelsheim | 435.54 mi (700.93 km) |
