| Idaho Falls to Kamen | 4,945.89 mi (7,959.64 km) |
| Idaho Falls to Kamenz | 5,139.67 mi (8,271.50 km) |
| Idaho Falls to Kamp-Lintfort | 4,918.08 mi (7,914.88 km) |
| Idaho Falls to Kandel | 5,091.84 mi (8,194.52 km) |
| Idaho Falls to Kappeln | 4,848.35 mi (7,802.67 km) |
| Idaho Falls to Karben | 5,048.24 mi (8,124.36 km) |
| Idaho Falls to Karlsdorf-Neuthard | 5,099.19 mi (8,206.36 km) |
| Idaho Falls to Karlsfeld | 5,233.14 mi (8,421.92 km) |
| Idaho Falls to Karlsruhe | 5,101.74 mi (8,210.46 km) |
| Idaho Falls to Kassel | 5,012.05 mi (8,066.12 km) |
| Idaho Falls to Kaufbeuren | 5,226.79 mi (8,411.71 km) |
| Idaho Falls to Kaufering | 5,223.47 mi (8,406.37 km) |
| Idaho Falls to Kaufungen | 5,017.26 mi (8,074.50 km) |
| Idaho Falls to Kehl | 5,107.44 mi (8,219.62 km) |
| Idaho Falls to Kelheim | 5,206.72 mi (8,379.40 km) |
