| Boulder to Illzach | 5,100.92 mi (8,209.14 km) |
| Boulder to Ingre | 4,901.15 mi (7,887.64 km) |
| Boulder to Irigny | 5,109.77 mi (8,223.37 km) |
| Boulder to Isbergues | 4,805.61 mi (7,733.89 km) |
| Boulder to Issoire | 5,058.31 mi (8,140.56 km) |
| Boulder to Issoudun | 4,949.92 mi (7,966.13 km) |
| Boulder to Issy-les-Moulineaux | 4,877.50 mi (7,849.58 km) |
| Boulder to Istres | 5,215.31 mi (8,393.23 km) |
| Boulder to Ivry-sur-Seine | 4,881.89 mi (7,856.65 km) |
| Boulder to Jarville-la-Malgrange | 5,020.82 mi (8,080.22 km) |
| Boulder to Jeumont | 4,875.92 mi (7,847.04 km) |
| Boulder to Joigny | 4,954.43 mi (7,973.39 km) |
| Boulder to Joinville-le-Pont | 4,884.75 mi (7,861.24 km) |
| Boulder to Joue-les-Tours | 4,883.84 mi (7,859.78 km) |
| Boulder to Jouy-le-Moutier | 4,861.20 mi (7,823.35 km) |
