| Heidelberg to Isselburg | 193.89 mi (312.03 km) |
| Heidelberg to Issum | 177.93 mi (286.35 km) |
| Heidelberg to Itzehoe | 313.37 mi (504.32 km) |
| Heidelberg to Jena | 164.34 mi (264.49 km) |
| Heidelberg to Jever | 289.40 mi (465.74 km) |
| Heidelberg to Jork | 287.51 mi (462.71 km) |
| Heidelberg to Juchen | 152.03 mi (244.67 km) |
| Heidelberg to Julich | 147.34 mi (237.12 km) |
| Heidelberg to Juterbog | 260.73 mi (419.61 km) |
| Heidelberg to Kaarst | 155.07 mi (249.56 km) |
| Heidelberg to Kaiserslautern | 42.63 mi (68.61 km) |
| Heidelberg to Kalkar | 192.48 mi (309.76 km) |
| Heidelberg to Kall | 124.08 mi (199.68 km) |
| Heidelberg to Kaltenkirchen | 310.21 mi (499.23 km) |
| Heidelberg to Kamen | 157.22 mi (253.01 km) |
