| Mercer Island to Isny im Allgau | 5,257.63 mi (8,461.34 km) |
| Mercer Island to Isselburg | 4,930.68 mi (7,935.16 km) |
| Mercer Island to Issum | 4,946.56 mi (7,960.71 km) |
| Mercer Island to Itzehoe | 4,878.77 mi (7,851.62 km) |
| Mercer Island to Jena | 5,101.00 mi (8,209.27 km) |
| Mercer Island to Jever | 4,863.46 mi (7,826.98 km) |
| Mercer Island to Jork | 4,905.21 mi (7,894.18 km) |
| Mercer Island to Juchen | 4,973.60 mi (8,004.24 km) |
| Mercer Island to Julich | 4,980.44 mi (8,015.24 km) |
| Mercer Island to Juterbog | 5,069.33 mi (8,158.30 km) |
| Mercer Island to Kaarst | 4,969.70 mi (7,997.96 km) |
| Mercer Island to Kaiserslautern | 5,100.03 mi (8,207.71 km) |
| Mercer Island to Kalkar | 4,931.94 mi (7,937.20 km) |
| Mercer Island to Kall | 5,006.51 mi (8,057.20 km) |
| Mercer Island to Kaltenkirchen | 4,893.37 mi (7,875.12 km) |
