| Formia to Knurow | 664.50 mi (1,069.41 km) |
| Formia to Kobylka | 843.47 mi (1,357.43 km) |
| Formia to Kokoszki | 931.55 mi (1,499.18 km) |
| Formia to Kolbuszowa | 733.59 mi (1,180.59 km) |
| Formia to Kolno | 923.56 mi (1,486.32 km) |
| Formia to Kolo | 791.41 mi (1,273.64 km) |
| Formia to Kolobrzeg | 896.50 mi (1,442.78 km) |
| Formia to Koluszki | 781.03 mi (1,256.95 km) |
| Formia to Komorniki | 773.72 mi (1,245.18 km) |
| Formia to Konin | 787.54 mi (1,267.42 km) |
| Formia to Konskie | 758.60 mi (1,220.84 km) |
| Formia to Konstancin-Jeziorna | 826.57 mi (1,330.24 km) |
| Formia to Konstantynow Lodzki | 773.06 mi (1,244.12 km) |
| Formia to Koronowo | 856.39 mi (1,378.23 km) |
| Formia to Koscian | 760.88 mi (1,224.53 km) |
