| Royston to Ilawa | 822.07 mi (1,323.00 km) |
| Royston to Imielin | 842.67 mi (1,356.14 km) |
| Royston to Inowroclaw | 769.97 mi (1,239.14 km) |
| Royston to Janow Lubelski | 968.00 mi (1,557.85 km) |
| Royston to Jarocin | 743.37 mi (1,196.34 km) |
| Royston to Jaroslaw | 992.08 mi (1,596.59 km) |
| Royston to Jasien | 782.83 mi (1,259.84 km) |
| Royston to Jaslo | 946.32 mi (1,522.95 km) |
| Royston to Jastrzebie-Zdroj | 819.45 mi (1,318.77 km) |
| Royston to Jawor | 698.84 mi (1,124.67 km) |
| Royston to Jaworzno | 843.56 mi (1,357.57 km) |
| Royston to Jedrzejow | 879.57 mi (1,415.52 km) |
| Royston to Jelcz-Laskowice | 747.22 mi (1,202.54 km) |
| Royston to Jelenia Gora | 681.22 mi (1,096.32 km) |
| Royston to Jozefoslaw | 891.51 mi (1,434.75 km) |
