| Didcot to Koscian | 762.46 mi (1,227.07 km) |
| Didcot to Koscielisko | 939.79 mi (1,512.45 km) |
| Didcot to Koscierzyna | 817.75 mi (1,316.04 km) |
| Didcot to Kostrzyn | 785.13 mi (1,263.54 km) |
| Didcot to Kostrzyn nad Odra | 677.22 mi (1,089.88 km) |
| Didcot to Koszalin | 745.84 mi (1,200.31 km) |
| Didcot to Kowary | 739.68 mi (1,190.40 km) |
| Didcot to Kozienice | 974.97 mi (1,569.06 km) |
| Didcot to Kozuchow | 719.99 mi (1,158.71 km) |
| Didcot to Kozy | 896.74 mi (1,443.16 km) |
| Didcot to Krakow | 927.00 mi (1,491.86 km) |
| Didcot to Krapkowice | 835.80 mi (1,345.09 km) |
| Didcot to Krasnik | 1,010.98 mi (1,627.02 km) |
| Didcot to Krasnystaw | 1,051.21 mi (1,691.76 km) |
| Didcot to Krosno | 1,011.77 mi (1,628.28 km) |
