| Mason City to Jozefow | 4,783.17 mi (7,697.76 km) |
| Mason City to Kalisz | 4,704.21 mi (7,570.70 km) |
| Mason City to Kamien Pomorski | 4,499.63 mi (7,241.46 km) |
| Mason City to Kamienna Gora | 4,684.26 mi (7,538.59 km) |
| Mason City to Karczew | 4,786.10 mi (7,702.49 km) |
| Mason City to Kartuzy | 4,587.59 mi (7,383.02 km) |
| Mason City to Katowice | 4,804.55 mi (7,732.17 km) |
| Mason City to Kedzierzyn-Kozle | 4,774.49 mi (7,683.79 km) |
| Mason City to Kepno | 4,723.48 mi (7,601.70 km) |
| Mason City to Ketrzyn | 4,693.15 mi (7,552.90 km) |
| Mason City to Kety | 4,828.52 mi (7,770.76 km) |
| Mason City to Kielce | 4,826.03 mi (7,766.75 km) |
| Mason City to Kielczow | 4,704.58 mi (7,571.28 km) |
| Mason City to Klobuck | 4,770.85 mi (7,677.93 km) |
| Mason City to Klodzko | 4,720.54 mi (7,596.97 km) |
