| Mason City to Kluczbork | 4,745.02 mi (7,636.38 km) |
| Mason City to Knurow | 4,796.30 mi (7,718.90 km) |
| Mason City to Kobylka | 4,772.45 mi (7,680.51 km) |
| Mason City to Kokoszki | 4,595.32 mi (7,395.45 km) |
| Mason City to Kolbuszowa | 4,891.69 mi (7,872.42 km) |
| Mason City to Kolno | 4,741.79 mi (7,631.18 km) |
| Mason City to Kolo | 4,700.59 mi (7,564.87 km) |
| Mason City to Kolobrzeg | 4,515.26 mi (7,266.61 km) |
| Mason City to Koluszki | 4,758.01 mi (7,657.27 km) |
| Mason City to Komorniki | 4,637.15 mi (7,462.76 km) |
| Mason City to Konin | 4,688.45 mi (7,545.33 km) |
| Mason City to Konskie | 4,803.53 mi (7,730.53 km) |
| Mason City to Konstancin-Jeziorna | 4,782.08 mi (7,696.01 km) |
| Mason City to Konstantynow Lodzki | 4,743.60 mi (7,634.09 km) |
| Mason City to Koronowo | 4,626.75 mi (7,446.04 km) |
