| Blackrock to Isny im Allgau | 808.74 mi (1,301.53 km) |
| Blackrock to Isselburg | 539.88 mi (868.85 km) |
| Blackrock to Issum | 544.00 mi (875.48 km) |
| Blackrock to Itzehoe | 643.40 mi (1,035.45 km) |
| Blackrock to Jena | 769.20 mi (1,237.91 km) |
| Blackrock to Jever | 578.81 mi (931.51 km) |
| Blackrock to Jork | 651.91 mi (1,049.14 km) |
| Blackrock to Juchen | 557.19 mi (896.72 km) |
| Blackrock to Julich | 555.90 mi (894.64 km) |
| Blackrock to Juterbog | 809.54 mi (1,302.82 km) |
| Blackrock to Kaarst | 559.09 mi (899.77 km) |
| Blackrock to Kaiserslautern | 656.50 mi (1,056.53 km) |
| Blackrock to Kalkar | 534.54 mi (860.26 km) |
| Blackrock to Kall | 573.72 mi (923.32 km) |
| Blackrock to Kaltenkirchen | 661.75 mi (1,064.99 km) |
