| Hardenberg to Rodgau | 201.55 mi (324.37 km) |
| Hardenberg to Roding | 346.58 mi (557.76 km) |
| Hardenberg to Rodinghausen | 81.50 mi (131.16 km) |
| Hardenberg to Roetgen | 133.63 mi (215.06 km) |
| Hardenberg to Rommerskirchen | 105.90 mi (170.43 km) |
| Hardenberg to Ronnenberg | 129.11 mi (207.78 km) |
| Hardenberg to Rosbach vor der Hohe | 180.58 mi (290.62 km) |
| Hardenberg to Rosdorf | 157.81 mi (253.96 km) |
| Hardenberg to Rosenheim | 406.83 mi (654.72 km) |
| Hardenberg to Rosrath | 117.68 mi (189.39 km) |
| Hardenberg to Rossdorf | 208.76 mi (335.96 km) |
| Hardenberg to Rosstal | 286.80 mi (461.57 km) |
| Hardenberg to Rostock | 250.53 mi (403.18 km) |
| Hardenberg to Rotenburg an der Fulda | 171.62 mi (276.19 km) |
| Hardenberg to Roth | 300.95 mi (484.34 km) |
