| Fern Down to Illzach | 465.82 mi (749.67 km) |
| Fern Down to Ingre | 260.58 mi (419.36 km) |
| Fern Down to Irigny | 470.42 mi (757.07 km) |
| Fern Down to Isbergues | 191.00 mi (307.38 km) |
| Fern Down to Issoire | 434.10 mi (698.61 km) |
| Fern Down to Issoudun | 320.05 mi (515.07 km) |
| Fern Down to Issy-les-Moulineaux | 231.01 mi (371.77 km) |
| Fern Down to Istres | 598.41 mi (963.05 km) |
| Fern Down to Ivry-sur-Seine | 235.45 mi (378.92 km) |
| Fern Down to Jarville-la-Malgrange | 390.74 mi (628.84 km) |
| Fern Down to Jeumont | 265.78 mi (427.74 km) |
| Fern Down to Joigny | 307.95 mi (495.60 km) |
| Fern Down to Joinville-le-Pont | 238.44 mi (383.73 km) |
| Fern Down to Joue-les-Tours | 265.58 mi (427.41 km) |
| Fern Down to Jouy-le-Moutier | 214.81 mi (345.71 km) |
