| Houghton Regis to Rheinbach | 334.67 mi (538.60 km) |
| Houghton Regis to Rheinberg | 305.83 mi (492.18 km) |
| Houghton Regis to Rheine | 338.65 mi (545.01 km) |
| Houghton Regis to Rheinfelden (Baden) | 476.96 mi (767.59 km) |
| Houghton Regis to Ribnitz-Damgarten | 562.14 mi (904.68 km) |
| Houghton Regis to Richterich | 294.01 mi (473.16 km) |
| Houghton Regis to Riedlingen | 513.15 mi (825.84 km) |
| Houghton Regis to Riegelsberg | 373.40 mi (600.92 km) |
| Houghton Regis to Rielasingen-Worblingen | 506.59 mi (815.29 km) |
| Houghton Regis to Riesa | 593.51 mi (955.16 km) |
| Houghton Regis to Rietberg | 382.14 mi (615.00 km) |
| Houghton Regis to Rinteln | 408.37 mi (657.21 km) |
| Houghton Regis to Ritterhude | 399.67 mi (643.20 km) |
| Houghton Regis to Rodenbach | 432.31 mi (695.73 km) |
| Houghton Regis to Rodental | 514.71 mi (828.35 km) |
