| Idanha-a-Nova to Karis | 1,921.74 mi (3,092.74 km) |
| Idanha-a-Nova to Karkkila | 1,954.88 mi (3,146.08 km) |
| Idanha-a-Nova to Kauhajoki | 1,975.72 mi (3,179.61 km) |
| Idanha-a-Nova to Kauhava | 2,026.23 mi (3,260.90 km) |
| Idanha-a-Nova to Kauniainen | 1,958.35 mi (3,151.66 km) |
| Idanha-a-Nova to Kemi | 2,174.70 mi (3,499.85 km) |
| Idanha-a-Nova to Kemijarvi | 2,279.39 mi (3,668.32 km) |
| Idanha-a-Nova to Kempele | 2,161.01 mi (3,477.81 km) |
| Idanha-a-Nova to Kerava | 1,975.64 mi (3,179.48 km) |
| Idanha-a-Nova to Keuruu | 2,034.06 mi (3,273.50 km) |
| Idanha-a-Nova to Kiiminki | 2,176.39 mi (3,502.57 km) |
| Idanha-a-Nova to Kirkkonummi | 1,945.46 mi (3,130.92 km) |
| Idanha-a-Nova to Kitee | 2,178.83 mi (3,506.48 km) |
| Idanha-a-Nova to Kiuruvesi | 2,137.59 mi (3,440.12 km) |
| Idanha-a-Nova to Kivisto | 1,965.46 mi (3,163.10 km) |
