| Niksar to Illzach | 1,538.42 mi (2,475.85 km) |
| Niksar to Ingre | 1,794.21 mi (2,887.50 km) |
| Niksar to Irigny | 1,646.86 mi (2,650.37 km) |
| Niksar to Isbergues | 1,786.41 mi (2,874.95 km) |
| Niksar to Issoire | 1,722.91 mi (2,772.75 km) |
| Niksar to Issoudun | 1,783.57 mi (2,870.38 km) |
| Niksar to Issy-les-Moulineaux | 1,778.58 mi (2,862.34 km) |
| Niksar to Istres | 1,642.86 mi (2,643.93 km) |
| Niksar to Ivry-sur-Seine | 1,773.73 mi (2,854.54 km) |
| Niksar to Jarville-la-Malgrange | 1,599.34 mi (2,573.89 km) |
| Niksar to Jeumont | 1,711.25 mi (2,753.98 km) |
| Niksar to Joigny | 1,721.89 mi (2,771.11 km) |
| Niksar to Joinville-le-Pont | 1,769.38 mi (2,847.54 km) |
| Niksar to Joue-les-Tours | 1,846.72 mi (2,972.01 km) |
| Niksar to Jouy-le-Moutier | 1,790.29 mi (2,881.20 km) |
