| Mariehamn to Isselburg | 770.08 mi (1,239.32 km) |
| Mariehamn to Issum | 787.51 mi (1,267.38 km) |
| Mariehamn to Itzehoe | 578.00 mi (930.20 km) |
| Mariehamn to Jena | 711.69 mi (1,145.36 km) |
| Mariehamn to Jever | 638.58 mi (1,027.69 km) |
| Mariehamn to Jork | 595.38 mi (958.17 km) |
| Mariehamn to Juchen | 810.21 mi (1,303.91 km) |
| Mariehamn to Julich | 823.93 mi (1,325.98 km) |
| Mariehamn to Juterbog | 618.77 mi (995.81 km) |
| Mariehamn to Kaarst | 800.81 mi (1,288.78 km) |
| Mariehamn to Kaiserslautern | 878.46 mi (1,413.75 km) |
| Mariehamn to Kalkar | 779.75 mi (1,254.89 km) |
| Mariehamn to Kall | 840.64 mi (1,352.88 km) |
| Mariehamn to Kaltenkirchen | 571.65 mi (919.98 km) |
| Mariehamn to Kamen | 753.88 mi (1,213.25 km) |
