| Houghton Regis to Rodgau | 429.33 mi (690.93 km) |
| Houghton Regis to Roding | 601.26 mi (967.63 km) |
| Houghton Regis to Rodinghausen | 382.96 mi (616.31 km) |
| Houghton Regis to Roetgen | 303.16 mi (487.89 km) |
| Houghton Regis to Rommerskirchen | 316.20 mi (508.87 km) |
| Houghton Regis to Ronnenberg | 432.56 mi (696.14 km) |
| Houghton Regis to Rosbach vor der Hohe | 415.02 mi (667.91 km) |
| Houghton Regis to Rosdorf | 446.88 mi (719.18 km) |
| Houghton Regis to Rosenheim | 628.22 mi (1,011.02 km) |
| Houghton Regis to Rosrath | 339.24 mi (545.95 km) |
| Houghton Regis to Rossdorf | 428.17 mi (689.08 km) |
| Houghton Regis to Rosstal | 528.18 mi (850.02 km) |
| Houghton Regis to Rostock | 546.68 mi (879.80 km) |
| Houghton Regis to Rotenburg an der Fulda | 445.51 mi (716.98 km) |
| Houghton Regis to Roth | 541.04 mi (870.71 km) |
