| Gilching to Ifield | 554.90 mi (893.03 km) |
| Gilching to Ilford | 552.89 mi (889.79 km) |
| Gilching to Ilfracombe | 720.60 mi (1,159.70 km) |
| Gilching to Ilkeston | 646.27 mi (1,040.07 km) |
| Gilching to Ilkley | 695.95 mi (1,120.02 km) |
| Gilching to Immingham | 628.80 mi (1,011.96 km) |
| Gilching to Ince-in-Makerfield | 711.48 mi (1,145.01 km) |
| Gilching to Inverness | 912.26 mi (1,468.14 km) |
| Gilching to Inverurie | 851.06 mi (1,369.64 km) |
| Gilching to Ipswich | 525.38 mi (845.52 km) |
| Gilching to Irlam | 702.05 mi (1,129.84 km) |
| Gilching to Irthlingborough | 600.84 mi (966.95 km) |
| Gilching to Irvine | 852.83 mi (1,372.50 km) |
| Gilching to Islington | 560.13 mi (901.44 km) |
| Gilching to Iver | 575.91 mi (926.83 km) |
