| Karlsruhe to Isny im Allgau | 117.99 mi (189.89 km) |
| Karlsruhe to Isselburg | 212.92 mi (342.66 km) |
| Karlsruhe to Issum | 195.42 mi (314.50 km) |
| Karlsruhe to Itzehoe | 343.00 mi (552.00 km) |
| Karlsruhe to Jena | 193.77 mi (311.85 km) |
| Karlsruhe to Jever | 316.17 mi (508.83 km) |
| Karlsruhe to Jork | 317.49 mi (510.95 km) |
| Karlsruhe to Juchen | 167.35 mi (269.33 km) |
| Karlsruhe to Julich | 160.41 mi (258.16 km) |
| Karlsruhe to Juterbog | 290.77 mi (467.94 km) |
| Karlsruhe to Kaarst | 171.84 mi (276.56 km) |
| Karlsruhe to Kaiserslautern | 41.55 mi (66.87 km) |
| Karlsruhe to Kalkar | 210.28 mi (338.42 km) |
| Karlsruhe to Kall | 134.80 mi (216.94 km) |
| Karlsruhe to Kaltenkirchen | 340.40 mi (547.82 km) |
