| Castano Primo to Karis | 1,174.44 mi (1,890.08 km) |
| Castano Primo to Karkkila | 1,211.29 mi (1,949.39 km) |
| Castano Primo to Kauhajoki | 1,281.44 mi (2,062.28 km) |
| Castano Primo to Kauhava | 1,335.46 mi (2,149.21 km) |
| Castano Primo to Kauniainen | 1,205.46 mi (1,939.99 km) |
| Castano Primo to Kemi | 1,514.50 mi (2,437.35 km) |
| Castano Primo to Kemijarvi | 1,614.61 mi (2,598.46 km) |
| Castano Primo to Kempele | 1,480.78 mi (2,383.09 km) |
| Castano Primo to Kerava | 1,223.23 mi (1,968.60 km) |
| Castano Primo to Keuruu | 1,316.10 mi (2,118.06 km) |
| Castano Primo to Kiiminki | 1,497.79 mi (2,410.47 km) |
| Castano Primo to Kirkkonummi | 1,193.18 mi (1,920.24 km) |
| Castano Primo to Kitee | 1,423.44 mi (2,290.80 km) |
| Castano Primo to Kiuruvesi | 1,429.01 mi (2,299.76 km) |
| Castano Primo to Kivisto | 1,213.58 mi (1,953.07 km) |
