| North Potomac to Isny im Allgau | 4,185.78 mi (6,736.37 km) |
| North Potomac to Isselburg | 3,920.57 mi (6,309.55 km) |
| North Potomac to Issum | 3,926.74 mi (6,319.48 km) |
| North Potomac to Itzehoe | 3,980.97 mi (6,406.75 km) |
| North Potomac to Jena | 4,147.34 mi (6,674.49 km) |
| North Potomac to Jever | 3,929.68 mi (6,324.21 km) |
| North Potomac to Jork | 3,997.97 mi (6,434.11 km) |
| North Potomac to Juchen | 3,941.67 mi (6,343.51 km) |
| North Potomac to Julich | 3,940.81 mi (6,342.11 km) |
| North Potomac to Juterbog | 4,171.61 mi (6,713.55 km) |
| North Potomac to Kaarst | 3,943.11 mi (6,345.82 km) |
| North Potomac to Kaiserslautern | 4,039.39 mi (6,500.76 km) |
| North Potomac to Kalkar | 3,916.21 mi (6,302.54 km) |
| North Potomac to Kall | 3,958.69 mi (6,370.90 km) |
| North Potomac to Kaltenkirchen | 3,999.90 mi (6,437.21 km) |
