| Irthlingborough to Karahalli | 1,735.16 mi (2,792.47 km) |
| Irthlingborough to Karakocan | 2,133.93 mi (3,434.23 km) |
| Irthlingborough to Karakopru | 2,161.51 mi (3,478.62 km) |
| Irthlingborough to Karaman | 1,935.63 mi (3,115.10 km) |
| Irthlingborough to Karapinar | 1,923.78 mi (3,096.02 km) |
| Irthlingborough to Karatas | 2,051.74 mi (3,301.96 km) |
| Irthlingborough to Karatepe | 1,642.14 mi (2,642.77 km) |
| Irthlingborough to Karayilan | 2,078.87 mi (3,345.62 km) |
| Irthlingborough to Kargipinar | 2,008.10 mi (3,231.73 km) |
| Irthlingborough to Karkamis | 2,145.25 mi (3,452.44 km) |
| Irthlingborough to Karliova | 2,159.77 mi (3,475.81 km) |
| Irthlingborough to Kars | 2,192.11 mi (3,527.86 km) |
| Irthlingborough to Kartal | 1,604.05 mi (2,581.47 km) |
| Irthlingborough to Kas | 1,843.57 mi (2,966.94 km) |
| Irthlingborough to Kastamonu | 1,770.59 mi (2,849.48 km) |
