| Opoczno to Illzach | 629.52 mi (1,013.12 km) |
| Opoczno to Ingre | 857.16 mi (1,379.46 km) |
| Opoczno to Irigny | 807.70 mi (1,299.87 km) |
| Opoczno to Isbergues | 775.11 mi (1,247.42 km) |
| Opoczno to Issoire | 875.66 mi (1,409.24 km) |
| Opoczno to Issoudun | 878.50 mi (1,413.81 km) |
| Opoczno to Issy-les-Moulineaux | 815.52 mi (1,312.44 km) |
| Opoczno to Istres | 894.83 mi (1,440.08 km) |
| Opoczno to Ivry-sur-Seine | 811.39 mi (1,305.80 km) |
| Opoczno to Jarville-la-Malgrange | 651.28 mi (1,048.13 km) |
| Opoczno to Jeumont | 708.75 mi (1,140.62 km) |
| Opoczno to Joigny | 788.62 mi (1,269.17 km) |
| Opoczno to Joinville-le-Pont | 806.87 mi (1,298.53 km) |
| Opoczno to Joue-les-Tours | 922.55 mi (1,484.70 km) |
| Opoczno to Jouy-le-Moutier | 821.29 mi (1,321.74 km) |
