| Colwyn Bay to Ilawa | 953.42 mi (1,534.38 km) |
| Colwyn Bay to Imielin | 1,000.39 mi (1,609.98 km) |
| Colwyn Bay to Inowroclaw | 909.34 mi (1,463.45 km) |
| Colwyn Bay to Janow Lubelski | 1,118.53 mi (1,800.10 km) |
| Colwyn Bay to Jarocin | 890.46 mi (1,433.06 km) |
| Colwyn Bay to Jaroslaw | 1,146.22 mi (1,844.66 km) |
| Colwyn Bay to Jasien | 907.12 mi (1,459.87 km) |
| Colwyn Bay to Jaslo | 1,103.34 mi (1,775.66 km) |
| Colwyn Bay to Jastrzebie-Zdroj | 979.00 mi (1,575.55 km) |
| Colwyn Bay to Jawor | 854.45 mi (1,375.10 km) |
| Colwyn Bay to Jaworzno | 1,000.81 mi (1,610.65 km) |
| Colwyn Bay to Jedrzejow | 1,033.03 mi (1,662.50 km) |
| Colwyn Bay to Jelcz-Laskowice | 901.59 mi (1,450.97 km) |
| Colwyn Bay to Jelenia Gora | 838.47 mi (1,349.38 km) |
| Colwyn Bay to Jozefoslaw | 1,034.27 mi (1,664.49 km) |
